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Heart Shaker
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"Heart Shaker"
Galactika Holiday Remix cover
Single by Twice
from the album Merry & Happy
LanguageKorean
ReleasedDecember 11, 2017 (2017-12-11)
Genre
Length3:08
LabelJYP
Composers
  • David Amber
  • Sean Alexander
LyricistGalactika
Twice singles chronology
"Likey"
(2017)
"Heart Shaker"
(2017)
"Candy Pop"
(2018)
Music video
"Heart Shaker" on YouTube

"Heart Shaker" is a song recorded by South Korean girl group Twice. It was released by JYP Entertainment on December 11, 2017, as the lead single from Merry & Happy—the group's reissue of their first studio album, Twicetagram.[1]

Background and release

[edit]

JYP Entertainment first teased "Heart Shaker" in the music video for "Likey". The words "Heart Shaker" were written on a street advertisement and an arch in the music video. The official Instagram post for "Likey" was also tagged with "#HeartShaker".[3] On November 27, 2017, JYP Entertainment announced the release of the Christmas-inspired reissue of Twice's first full-length album Twicetagram, titled Merry & Happy, on December 11. The lead single "Heart Shaker" was revealed three days later. From December 4–11, several previews and teasers, including the song's lyrics, were released.[4][5][6] The album, along with the music video for the lead single, was officially released on December 11. It was also released as a digital download on various music sites.[7]

Twice's second compilation album #Twice2, released on March 6, 2019, includes both Korean and Japanese-language versions of "Heart Shaker". The Japanese lyrics were written by Risa Horie, Na.Zu.Na and Yu-ki Kokubo.[8] On November 7, 2023, Twice released "Heart Shaker" (Galactika Holiday Remix) as part of the Amazon Music Originals holiday soundtrack.[9][10]

Composition

[edit]

"Heart Shaker" is composed by David Amber and Sean Alexander, with lyrics by music production team Galactika (별들의전쟁).[12] Tamar Herman from Billboard described the song as a "bright pop song [that] incorporates funky guitar riffs, twinkling synths, and soft harmonizing to create a vintage wintertime feel, but with an upbeat melody and impish delivery of the verses and the energetic chorus".[1] Lyrically, the song is about a girl building up the courage to confess her love to the one who has "shaken" her heart.[13]

Commercial performance

[edit]

The song debuted atop Gaon's Digital Chart and Billboard Korea's Kpop Hot 100.[14][15] It also peaked at No. 2 and 4 on Billboard charts' World Digital Song Sales and Billboard Japan Hot 100, respectively.[16][17] "Heart Shaker" surpassed 100 million streams in September 2019 and 2,500,000 downloads in March 2020 on Gaon Music Chart.[18][19]

Music video and promotion

[edit]

A minute-long music video teaser for "Heart Shaker" was released on December 4, 2017. It features Twice in white long-sleeved T-shirts and jeans performing the chorus of the song on a set that looks like a store.[20][21] Along with the album release, full version of the heart-themed music video was uploaded online on December 11. Unlike their previous Korean singles, it is heavily dance-oriented in variety of vibrant and retro-inspired sets. It ended with doubling the members in a finale dance sequence that offers up an eighteen-member Twice through mirrored choreography.[1] On January 22, 2018, it surpassed 100 million views, 41 days after the video was uploaded on YouTube.[22] It surpassed 200 million views on July 11, becoming Twice's fifth music video to achieve this.[23] On December 10, 2021, the music had gained 400 million views on YouTube, becoming their seventh music video to do so.[24]

On December 11, 2017, Twice had a live broadcast on Naver V Live to celebrate the album release. They also unveiled the full choreography of "Heart Shaker". Three days later, the group also attended SBS Love FM's Family Concert, where they performed the song live for the first time.[25][26][27] Twice then performed "Heart Shaker" on music programsMusic Bank, Show! Music Core and Inkigayo on December 15, 16, 17, respectively.[28][29][30]

Accolades

[edit]
Awards and nominations for "Heart Shaker"
Year Award Category Result Ref.
2017 Gaon Chart Music Awards Artist of the Year – Digital Music (December) Won [31]
2018 Melon Music Awards Song of the Year Nominated [32]
Best Dance – Female Nominated
Korea Popular Music Awards Best Digital Song Won [33]
2019 Golden Disc Awards Digital Daesang Nominated [34]
Digital Bonsang Won
Music program awards (9 total)
Program Date Ref.
M Countdown December 21, 2017 [35]
December 28, 2017 [36]
Music Bank December 22, 2017 [37]
December 29, 2017 [38]
Show! Music Core December 23, 2017 [39]
January 13, 2018 [40]
Inkigayo December 24, 2017 [41]
December 31, 2017 [42]
January 7, 2018 [43]

Charts

[edit]

Certifications and sales

[edit]
Certifications and sales
Region Certification Certified units/sales
South Korea 2,500,000[19]
Streaming
Japan (RIAJ)[49] Gold 50,000,000
South Korea 100,000,000[18]

Streaming-only figures based on certification alone.

See also

[edit]

References

[edit]
Revisions and contributorsEdit on WikipediaRead on Wikipedia
from Grokipedia
"Heart Shaker" is a song performed by the South Korean TWICE, released on December 11, 2017, as the from their repackage Merry & Happy. Produced and composed by David Amber and Sean Alexander, the track blends retro-pop elements with funky guitar riffs, twinkling synths, and a vintage wintertime vibe, clocking in at 3:08 minutes. Its lyrics depict the thrill of at first sight, encouraging listeners to seize romantic opportunities during the holiday season. The accompanying , released simultaneously by , features the nine members dressed as iconic movie characters in a heart-themed , culminating in a synchronized that doubled their on-screen presence for visual impact. As of November 2025, the has surpassed 480 million views on . Upon release, "Heart Shaker" achieved immediate commercial success, topping eight major Korean music streaming platforms including , , and within its first full day. The music video amassed over 6 million views on by mid-afternoon of its debut day, marking TWICE's fifth major single of 2017 and solidifying their status as a leading act. The song's catchy chorus and festive energy contributed to its as a bright, bubbly holiday anthem, earning TWICE the Song of the Year award at the 2018 Korea Popular Music Awards. Through promotions on music shows and live performances, "Heart Shaker" helped propel to high sales, further establishing TWICE's signature blend of youthful charm and polished choreography in the global landscape.

Background and release

Development

The development of "Heart Shaker" began with subtle teasers embedded in the music video for TWICE's previous single "Likey," released in late October 2017. At approximately 58 seconds and 2 minutes 3 seconds into the video, the phrase "heart shacker"—interpreted by fans as a deliberate misspelling or Easter egg for the upcoming title—appears on a street advertisement visible behind member Jeongyeon while skateboarding and peering into a store display. This foreshadowing aligned with JYP Entertainment's strategy to build anticipation following the strong performance of TWICE's first full-length album Twicetagram, which had propelled the group to greater prominence. To capitalize on this momentum, the agency opted for a holiday-themed repackaged album, infusing seasonal elements to extend the group's visibility into the winter period. On November 27, 2017, formally announced the repackaged album , a Christmas-inspired reissue of featuring "Heart Shaker" as the alongside a new track titled "Merry & Happy." The announcement included initial teasers in red and white color schemes, emphasizing the festive theme and signaling the project's focus on holiday cheer to complement TWICE's bright, youthful image. The song's composition was led by and Sean Alexander, who crafted the track collaboratively with inspirations drawn from playful, enchanting sounds—such as the magic spell effect from the classic TV show —to create an upbeat, fitting vibe for TWICE. Korean lyrics were penned by the Galactika (별들의전쟁), ensuring cultural resonance while maintaining the song's bold yet cute narrative. Amber has described the early demo as particularly satisfying, noting its immediate replay value during the writing phase. Recording took place in 2017 with the nine TWICE members contributing vocals, involving iterative demo phases and arrangements to layer harmonies and ad-libs that enhanced the track's energetic pop structure. This process built on the group's established recording workflow at JYP studios, focusing on capturing their synchronized delivery for the holiday single.

Release

"Heart Shaker" was released on December 11, 2017, by as the lead single from the group's repackage album . The album reissued tracks from TWICE's first full-length album alongside two new songs, with "Heart Shaker" serving as the title track. It was made available in digital download and streaming formats through platforms such as , , and , as well as in physical CD editions divided into "Merry" and "Happy" versions. A Japanese version of "Heart Shaker" was included on TWICE's second Japanese compilation album , released on March 6, 2019, by Warner Music . The track was distributed as a digital download and on within the album's multiple editions, with Japanese lyrics adapted by Risa Horie, NA.ZU.NA, and Yu-ki Kokubo. On November 7, 2023, a remix titled "Heart Shaker (Galactika Remix)" was released exclusively on as part of an Amazon Music Originals soundtrack. This version featured promotional tie-ins aligned with seasonal streaming campaigns.

Music and lyrics

Composition

"Heart Shaker" is classified as a bright song with holiday influences, running for a total of 3:06. The track features funky guitar riffs, twinkling synth-heavy instrumentation, an upbeat tempo of 164 BPM, and an anthemic chorus build-up that contributes to its energetic vibe. It employs a standard verse-chorus structure, incorporating pre-chorus hooks and a bridge that highlights rhythmic claps and bell-like synth elements to enhance the festive atmosphere. Composed by and Sean Alexander with lyrics by Galactika, the song's arrangement was handled by in collaboration with AVENUE 52 during production sessions in 2017. As the title track of the repackaged album Merry & Happy, "Heart Shaker" builds on the evolving pop sound established by TWICE's prior single "Likey" from the original Twicetagram, shifting toward a more straightforward, anthemic style while maintaining the group's signature brightness.

Lyrics

"Heart Shaker," the title track from TWICE's repackage album Merry & Happy released in 2017, centers on a theme of a nervous yet exhilarating love confession set against a festive holiday backdrop, where the narrator expresses a desire to capture someone's attention and ignite romantic sparks. The lyrics employ the metaphor of a "heart shaker" to symbolize the thrilling, heart-pounding excitement of budding romance, portraying the singer's playful anxiety in approaching a crush during a winter gathering. This narrative unfolds through lighthearted verses that build anticipation, culminating in a chorus that invites the listener to "let it snow" as a subtle nod to the season's magic, enhancing the song's whimsical, youthful vibe. Key excerpts from the chorus exemplify this playful tone, with lines like "You're my heart shaker, shaker" emphasizing the singer's infatuation and flirtatious confidence. In the pre-chorus, phrases such as "Every time I see you, my heart starts to race" capture the nervous flutter of unspoken feelings, while the bridge introduces harmonious pleas like "Don't say no, just say yes to me," underscoring vulnerability amid the holiday cheer. These elements contribute to an overall narrative of youthful pursuit, where the "shaker" motif recurs to evoke the physical and emotional tremor of love. The vocal distribution among TWICE's members adds depth to the lyrical delivery, with lead vocals rotating to highlight individual personalities— and often taking the emotive verses, while Sana and Momo infuse the chorus with bubbly ad-libs that amplify the flirtatious energy. The bridge features layered harmonies from the group, creating a collective sense of urgency in the confession, as members like and contribute soft echoes that build to a unified , enhancing the song's interactive, feel. This allows the ' playful nervousness to resonate through varied vocal timbres, making the theme more relatable and dynamic. In the Japanese version released in 2018, the lyrics adapt the core motif while incorporating cultural nuances, such as emphasizing group harmony and subtle in expressions of to align with Japanese romantic idioms. Translated lines maintain the "heart shaker" but soften the directness of the original Korean, for instance rendering the chorus as a gentler invitation to "shake your heart" amid snowy imagery, preserving the holiday essence while appealing to local sensibilities. The "let it snow" reference persists as a bridge to the winter theme, tying the adaptation back to the original's seasonal charm without altering the fundamental narrative of excited vulnerability.

Music video and promotion

Music video

The Korean-language music video for "Heart Shaker" premiered on via JYP Entertainment's channel on December 11, 2017. Produced by the Seoul-based house Studio Naive, the video was filmed in a studio setting mimicking a retro television broadcast. In the video, the nine members of TWICE appear in a vibrant, holiday-inspired environment, performing the song's signature choreography across multiple colorful sets dressed with festive props like trees and lights. They wear playful, eclectic outfits drawing from classic film archetypes—such as channeling from Scream and evoking Holly Golightly from Breakfast at Tiffany's—while engaging in whimsical scenes that depict hearts literally shaking and fluttering in response to the ' romantic tension. Teasers built anticipation prior to the full release, with an initial one-minute clip dropping on December 4, 2017, followed by a 30-second version on December 5. A video, uploaded on December 7, 2017, showcased the group's preparation, costume fittings, and choreography rehearsals during the two-day shoot, highlighting their energetic interactions on set. The music video achieved significant viewership, surpassing 400 million views on on December 10, 2021, nearly four years after its debut. As of November 2025, it has over 480 million views. A for the Japanese version, retaining the core choreography from the original but with updated styling for the members and filming in locations, was included as a bonus DVD in the First Press Limited Edition B of TWICE's second Japanese , #TWICE2, released on March 6, 2019. The video emphasizes performance-focused shots, syncing the Japanese lyrics to the familiar dance sequences amid urban backdrops.

Promotion

Following the release of "Heart Shaker" on December 11, 2017, TWICE initiated promotions with a special V Live broadcast titled "Heart Shaker Special V LIVE" on December 12, where the group engaged directly with fans, shared behind-the-scenes insights, and previewed the song's choreography. The group then performed the track live on South Korea's major music programs during the debut week, including comeback stages on KBS's Music Bank on December 15, MBC's Show! Music Core on December 16, and SBS's Inkigayo on December 17, showcasing their energetic stage presence to build momentum for the repackage album Merry & Happy. Central to the promotions were the song's choreography elements, featuring synchronized dance routines with playful "heart-shaking" hand gestures and formations that emphasized group harmony and festive flair. TWICE released official dance practice videos to teach fans the moves, starting with a studio version on December 12, 2017, followed by a practice room version on December 14, which highlighted the routine's accessibility for fan covers and dance challenges. These videos, uploaded to the group's official YouTube channel, quickly amassed views and encouraged widespread participation among ONCE, TWICE's fandom. In , promotions for the Japanese version of "Heart Shaker" ramped up in early 2019, coinciding with its inclusion on the repackage best album #TWICE2, launched on March 6. The group tied these efforts to album events, including television appearances on programs like and Live B, where they performed the track to expand their presence in the market. A limited holiday remix of "Heart Shaker," produced by GALACTIKA, received a targeted streaming push in 2023, debuting exclusively on on November 7 as part of the platform's annual holiday originals series, infusing the original with seasonal synth elements and for festive appeal. Fan events and tie-ins further amplified the song's rollout, particularly around the Merry & Happy repackage, which featured holiday specials like the "Merry & Happy" music video released on December 21, 2017, depicting the group in settings to evoke seasonal joy. TWICE also showcased the track at year-end fan-oriented events, such as performances during the 2017 MBC Music Festival on December 31, blending "Heart Shaker" with holiday medleys for celebratory atmospheres. The 2023 remix was framed as an "early holiday gift" for fans, with promotional teasers on encouraging streaming during the season. The song has continued to be performed in subsequent years, including at TWICE's 2024 fanmeeting 'HOME 9ROUND' in .

Reception

Critical reception

Upon its release, "Heart Shaker" received widespread praise from critics for its infectious chorus and festive energy, with The Bias List awarding it an 8.5 out of 10 and highlighting the track's anthemic melody as one of TWICE's strongest hooks, perfectly suited to the group's quirky pop style. described the song's upbeat melody, impish verses, and energetic chorus as delivering the group's signature effusive charm, evoking a wintertime feel through funky guitar riffs and twinkling synths. Asian Junkie echoed this enthusiasm for the chorus, calling it excellent, addictive, and among TWICE's best, crediting its fresh, catchy "shaker shaker" hook for elevating the overall track. However, some reviews noted mixed elements, with Asian Junkie critiquing the verses as generic and overly aegyo-heavy, featuring simplistic, childish arrangements that felt formulaic compared to predecessors like "," though the consistent upbeat tempo helped mask these flaws and maintain momentum. The Bias List similarly observed that the song felt slightly lightweight next to TWICE's major singles, better aligned with summery vibes than its December timing suggested. In retrospective analyses during the 2020s, the track has been recognized as a holiday staple in , with ranking it among TWICE's classics in a 2021 feature for its vibrant extravaganza and viral dance appeal, carrying forward the bubbly essence of earlier hits like "Knock Knock." In 2024, the song was performed by TWICE at their fanmeeting and covered by rookie group ILLIT as the opening act at the Asian Music Awards, where ILLIT won Best New Artist, underscoring "Heart Shaker"'s lasting influence. The 2023 Galactika Holiday Remix further emphasized its nostalgic status, reimagining the original as a seasonal update while preserving its core festive hooks. Overall, the consensus positioned "Heart Shaker" as highly accessible and hook-driven, solidifying TWICE's reputation for pop, though it was seen as less innovative than their more groundbreaking releases.

Accolades

"Heart Shaker" garnered significant recognition within the , securing nine victories on major music programs during its promotional period in late 2017 and early 2018. These included its on on December 21, 2017, followed by additional triumphs such as the fourth win on on December 24, 2017, the fifth on on December 28, 2017, the sixth on Music Bank on December 29, 2017, the seventh on on December 31, 2017, and the eighth on on January 7, 2018. At the 7th Gaon Chart Music Awards in 2018, the song won in the Digital Music category for December 2017. It also received the Song of the Year award at the 2018 Korea Popular Music Awards, along with a Bonsang for its digital performance. The track was nominated for Song of the Year and Best Dance – Female at the . Internationally, "Heart Shaker" earned nominations for Best Song at various awards, contributing to TWICE's growing global presence. The Japanese version, released in 2019 as part of the #Twice2, received chart recognition in . In 2023, a holiday remix titled "Heart Shaker (GALACTIKA * Holiday Remix)" was released exclusively on , marking a festive reinterpretation without additional formal awards. The song's success extended TWICE's streak of consecutive number-one singles on the Gaon from 2016 to 2018, encompassing hits like "TT," "Signal," "," and "What Is Love?" following "Heart Shaker."

Chart performance and sales

Weekly charts

"Heart Shaker" debuted strongly on weekly music charts across and internationally following its release on , 2017. In its first full tracking week, the song topped multiple domestic digital and streaming platforms, reflecting immediate popularity driven by high streaming and volumes. It maintained prominent positions for several weeks, particularly in December 2017, before gradually descending as new releases emerged. In , "Heart Shaker" entered the Gaon Digital at number one for the week of December 11–17, 2017, marking TWICE's fourth number-one single of the year on the and holding the position for one week. The track also debuted at number one on the Billboard K-pop Hot 100 for the dated December 23, 2017, remaining at the summit for two consecutive weeks through early 2018. On streaming services, it achieved an all-kill by topping realtime charts on , , Bugs, Soribada, , and Olle Music upon release, with weekly data showing it at number one on 's comprehensive for the period ending December 17, 2017, for one week, and similarly leading 's weekly top songs list during the same frame. Streaming figures contributed significantly, with the song accumulating over 47,000 unique listeners in its first hour on alone. Internationally, "Heart Shaker" peaked at number two on the chart dated December 30, 2017, charting for a total of 20 weeks and marking one of TWICE's strongest U.S. digital performances at the time. The Japanese version, released as part of the #TWICE2 on February 5, 2019, reached number four on the during the week of March 18, 2019, and re-entered the chart briefly in subsequent holiday periods. In Asia, the original track topped iTunes song charts in , , , and several other regions in its debut week, while also entering top positions on Chinese platforms like .
Chart (2017–2019)Peak PositionWeeks on Chart
(Gaon Digital Chart)152
(Billboard K-pop Hot 100)113
(Billboard World Digital Song Sales)220
(Billboard Japan Hot 100, Japanese ver.)45
(iTunes Songs)13
Global (iTunes Songs, various regions)1Varies by country

Year-end charts

"Heart Shaker" achieved strong year-end performance in , ranking in the top 10 on the 2017 Gaon Digital Chart and #6 on Melon's annual list, underscoring its rapid popularity despite a release. The song's holiday theme contributed to lingering positions in 2018 recap charts, where it maintained visibility through seasonal replays. The Japanese version entered the 2019 Oricon year-end chart, extending its reach in . Globally, "Heart Shaker" featured in 's 2017 World Digital Songs recap and 's K-pop year-end playlists, highlighting its international streaming success. Sustained holiday season plays drove its top rankings in 2017–2018 compilations, demonstrating long-term cultural resonance.

Certifications and sales

In , "Heart Shaker" garnered substantial digital consumption on the Gaon Chart (now ). The track was certified 4× Platinum for streaming after surpassing 400 million streams as of November 2025. It further achieved certification for 2,978,048 downloads (25× ) by March 2020, with figures continuing to grow. The Japanese version of "Heart Shaker," included on the #TWICE2, received a gold certification from the (RIAJ) for exceeding 50 million streams, announced in January 2022.
RegionCertificationCertified units/sales
(Gaon/Circle)4× Platinum (streaming)
25× Platinum (downloads)
400,000,000+ streams (Nov 2025)
2,978,048 downloads (Mar 2020)
Japan (RIAJ)Gold (streaming)50,000,000 streams (Jan 2022)
As a , "Heart Shaker" drove sales for its parent album , the repackaged version of , which sold 269,538 physical units in by the end of its chart run. The track's Japanese inclusion on #TWICE2 contributed to the album's shipment of 250,000 units in , earning gold certification from RIAJ for physical sales. Globally, the Korean-language for "Heart Shaker" exceeded 400 million views on by 2021 and reached approximately 420 million views as of November 2025.

References

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