Babymonster (Korean: 베이비몬스터; stylized in all caps), also referred to as Baemon (/beɪmɒn/ BAY-mon; 베몬), is a South Korean girl group formed by YG Entertainment. The group is composed of seven members: Ruka, Pharita, Asa, Ahyeon, Rami, Rora, and Chiquita.

Babymonster debuted as a full ensemble on April 1, 2024, with their eponymous extended play (EP) Babymons7er. Its single "Sheesh" became their first top-ten hit on South Korea's Circle Digital Chart. Babymonster subsequently released their debut studio album Drip in November, which sold over one million copies in South Korea. The album's title track became their second top-ten hit in the country. In 2025, the group released their second extended play We Go Up and embarked on the Hello Monsters World Tour.

Following the launch of YG Entertainment's representative girl groups, 2NE1 (2009) and Blackpink (2016), news of their next girl group circulated as early as 2018. They received applicants from various countries, some of whom were accepted into its training program as early as age 10, training an average of four to five years. In the number of recruits, each prospective member placed first against thousands in their respective auditions. In January 2020, "Babymonster", one of many names initially considered for Blackpink, and "Baemon" (a syllabic abbreviation of the former) were trademarked in English and Korean by the label and tentatively used by media outlets until the eventual disclosure of their official uses.

Its selection process was chronicled in Last Evaluation (2023), a reality show filmed in the previous year prior to its airing, showcasing seven potential members. Label founder, Yang Hyun-suk, enlisted assistance by Lee Su-hyun of AKMU, and Winner's Kang Seung-yoon and Lee Seung-hoon amidst others to judge, rank, and determine its formation for the duration of the show. Yang revealed the number of members he first planned was five; however, a seven-piece ensemble was finalized with three South Koreans (Ahyeon, Rami, Rora), two Japanese (Ruka, Asa), and two Thai members (Pharita, Chiquita). Ahyeon, Ruka, Chiquita, Rami, and Pharita were selected by the label, while Rora and Asa were contemplated to be placed into two different projects before ultimately joining the final line-up as the "fans' choice".

Leading to their acceptance into the label, Rami started as a child model at age two; Ruka debuted in the Japanese girl group Shibu3 project [ja]; Rora joined the children's music group U.SSO Girl with Hyein of NewJeans; and Pharita modelled in contests and sought for audition programs. Ruka, the longest trained member of the seven, Rora, and Asa, trained under the company for six years prior to their debut. Rami and Ahyeon honed their craft for five years, while Pharita, who was chosen out of 1,226 applicants in her audition, trained for four years. Chiquita, the final addition to the prospective group, joined after three months of training, the shortest period of all members; cultivating with its members for three years. In this time, their vocals were often recorded in their labelmate's work (i.e. the final chorus of Kang Seung-yoon's "Iyah" (아이야; aiya)).

YG Entertainment signaled the septet's formal introduction on December 30, 2022, with a poster and the subtext "YG Next Movement". It heralded a trailer-esque video posted on YouTube on New Year's Day that garnered 15 million views in three days, and featured appearances by members of Winner and Blackpink, sibling duo AKMU, dancer and choreographer Leejung Lee, and label founder Yang Hyun-suk. The seven members were revealed to the public through the gradual releases of live performance videos starting on January 12, (in order: Rami, Ahyeon, Chiquita, Asa, Rora, Pharita, and Ruka). They released a pre-debut promotional single titled "Dream" on May 14, 2023, coinciding with the release of Last Evaluation (2023); the YouTube exclusive debuted atop the Billboard Hot Trending Songs chart. Their channel soon surpassed one million subscribers in 52 days since its creation on December 28, 2022, and two million subscribers in 129 days, becoming the fastest K-pop girl group to achieve this milestone.

The group released two singles as a six-piece titled "Batter Up" and "Stuck in the Middle" on November 27, 2023, and February 1, 2024, respectively, with the former serving as the sextet's debut single and Babymonster's pre-debut release. Label-mates Lee Chan-hyuk of AKMU and Choi Hyun-suk of Treasure contributed in penning the piece, while its member Asa, worked on both its music and lyrics. Its music video amassed 22.59 million views within a day, became the most viewed debut music video in the first 24 hours in K-pop history, and became the fastest debut music video to reach 100 million views on the platform, eighteen days after its release. It found further success on Spotify, achieving 10 million streams in ten days, the fastest for a rookie K-pop girl group. Ahyeon, who was absent from its releases for health reasons, soon recovered and returned from her hiatus, joining the ensemble to promote their future activities as a seven-member group.

Marking the group's official debut, their first extended play (EP) Babymons7er, was released on April 1. It was primarily supported by the titular single "Sheesh" and included re-recordings of "Batter Up" and "Stuck in the Middle" with all seven members. A gift titled "Like That" by Charlie Puth following a viral cover of "Dangerously" sung by Ahyeon, was also included. The eponymous release received over 460,000 pre-orders, and debuted at number three on the Circle Album Chart. Initially released to lukewarm reception, "Sheesh" experienced a surge in popularity through its live performances, peaking at number ten on the Circle Digital Chart. It became the highest-charting K-pop girl group entry on Spotify that year, debuting at sixty-ninth place on the Daily Top Songs Global Chart with 1.76 million streams. To commemorate their debut, a pop-up store at The Hyundai Seoul, which was held for ten days, attracted 2,000 visitors in its first two days. In tandem with their EP, the septet embarked on their inaugural fan meeting tour in May, covering six countries in Asia: Singapore, Japan, Thailand, Taiwan, Indonesia, and South Korea. Consequently, Babymonster entered "arena-class" venues within forty days of their debut, selling out 26,000 tickets at their Tokyo stop alone.