"I'm Good (Blue)" is a song by French DJ and record producer David Guetta and American singer-songwriter Bebe Rexha. Produced by the former alongside Timofey Reznikov, it was written by the artists alongside Kamille and Plested, with additional writing credits going to Jeffrey Jey, Massimo Gabutti, and Maurizio Lobina, as the song is a reworking of Italian group Eiffel 65's single "Blue (Da Ba Dee)" (1998). Marking the artists' fourth collaboration, it was released for digital download and streaming in various countries by What a DJ and Warner on 26 August 2022. The song is included on Rexha's third studio album, Bebe (2023). Despite working on the song in 2017 with no intention to release it, the artists were prompted to complete the song in 2022, after a snippet of it gained extensive popularity on social media. It is an upbeat dance-pop song that channels Rexha's excitement for a long clubbing night and the potential of an unforgettable night. The song was met with a warm reception from music critics for its lyrics, sound and collaboration between Guetta and Rexha.

"I'm Good (Blue)" garnered international success by attaining the number one position on rankings in 20 countries and securing a top 10 position in over 15 additional territories. The song reached number four on the Billboard Hot 100 and topped the US Dance/Electronic Songs, Dance/Mix Show Airplay and Mainstream Top 40 charts. It stands as the second longest-running chart-topper in the Dance/Electronic chart, maintaining this position for 55 weeks. The song received multiple gold and platinum certifications as well as diamond in Brazil, Mexico, France, and Poland. Among several nominations, it triumphed as the Best Collaboration at the 2022 MTV Europe Music Awards and Best Top Dance/Electronic Song at the 2023 Billboard Music Awards. The song also earned a nomination for the Best Dance/Electronic Recording at the 65th edition of the Grammy Awards. It was performed live at various occasions, among others at the American Music Awards, Brit Awards, Kids' Choice Awards, NRJ Music Awards and during the closing ceremony of the FIFA Club World Cup.

In 2017, David Guetta and Bebe Rexha began working on "I'm Good (Blue)" without intending to release it at the time. In 2022, a snippet of the song garnered sudden popularity on the social media platform TikTok, prompting Guetta and Rexha to eventually finalise the song. Rexha described the start of the collaborative effort as a "last-second session the day of". As she explained, it all started with an unplanned message on social media, while Guetta was working on a recording and writing session in London. Guetta then played Rexha a remix of a song by Italian group Eiffel 65, and they started having fun with it, without any expectation of it turning into a finished song. Leading up to its premiere, they published several videos on their respective TikTok accounts in August 2022, with Rexha lip-syncing along to the song and Guetta playing it at the Ultra Music Festival in 2017, with a caption that read, "Should we release it?". The song marks the fourth collaboration between Guetta and Rexha, after "Hey Mama" (2015), "Say My Name" (2018) and "Family" (2021), most of whom achieved commercial success. What A DJ and Warner released "I'm Good (Blue)" for digital download and streaming in various countries on 26 August. The single, accompanied by remixes from notable artists such as French disc jockey Cedric Gervais, Italian Gabry Ponte and Dutch Tiësto, was published between from September to October 2022. An acoustic rendition of the song, incorporating guitars and vocals, followed in January 2023. In September 2023, a Latin version, featuring Lit Killah and Ludmilla, was unveiled. Furthermore, the song was included on Rexha's third studio album, Bebe (2023).

"I'm Good (Blue)" was written by Guetta, Rexha, Gianfranco Randone, Kamille, Massimo Gabutti, Maurizio Lobina and Plested, and was produced by Guetta and Timofey Reznikov. It is composed in the key of G minor and time signature of common time with a tempo of 128 beats per minute. The song follows in the chord progression of Gm in the intro, Gm–F/G–EG-Cm/G-Gm-F/G-EG in the chorus and E♭-Cm-Gm-F-E♭ in the verse. It is an upbeat dance-pop, which interpolates Italian group Eiffel 65's single "Blue (Da Ba Dee)" (1998). The vocal range of Rexha in the song spans from a low note of D₃ to a high note of F₅. The lyrics of the song captures Rexha's anticipation of a long clubbing night ahead. She showcases her good mood and excitement of having one of the best nights, singing lines such as, "I'm good, yeah, I'm feelin' alright/ Baby, I'ma have the best freaking night of my life/ And wherever it takes me, I'm down for the ride."

The critical reception of the collaboration between Guetta and Rexha in "I'm Good (Blue)" has been generally positive. Markos Papadatos from Digital Journal complimented Rexha's vocals for their "crystalline and breathy" quality, along with Guetta's "exceptional" production. Cameron Sunkel for EDM hailed the song as an "iconic jam", lauding both Rexha's "uplifting" lyrics and Guetta's production, writing that it "[adds] a biting bassline to the chorus". Billboard contributors Katie Atkinson and Keith Caulfield wrote that amidst "a sea of out-of-left-field hit songs this year ['the song'] stands out as one of the most unpredictable". Mike Wass from Idolator applauded the "iconic" sample, adding that "you can't help but be drawn into the song, if you like it or not." Neil Z. Yeung praised the song as an "EDM anthem". Franz Liesenhoff of DJ Mag found the song as a "not cheap copy or another 0815 slap house cover", complimenting the "iconic" melody and Rexha's "strong" vocals. As for Chris Vuoncino of We Rave You, the song "will only further catapult an already incredible career for [...] Rexha." Jack Spilsbury of the same publication praised Rexha's voice and found the song "exciting and thrilling, containing energy to accompany every club night or festival mainstage". Mike Wass for Variety wrote that, "With six hit collaborations to their credit creative, [their] chemistry is undeniable". Katrin Elsner for Westdeutscher Rundfunk (WDR) commented that, "It's such an earworm that ['the song'] became a hit even before its official release". Bradley Stern for MuuMuse similarly explained that, "[it] is an obvious earworm, and a clear school dance/wedding/bar mitzvah smash in the making, on the level of Black Eyed Peas' ['I Got a Feeling']". Maura Johnston from the Boston Globe praised Rexha as a "robust-voiced" artist and Guetta's incorporation of the "insistent hook" and "parenthetical title" from "Blue (Da Ba Dee)" into the song. Annabel Ross for Mixmag labeled the song as a "smash" but found the song "somehow even more inane than Eiffel 65's bizarre word salad".

In 2022, "I'm Good (Blue)" won an award in the category for the Best Collaboration at the MTV Europe Music Awards. Rexha was one of three ethnic Albanian artists, who were nominated in the same category on the same occasion. The song garnered a nomination for the International Song of the Year and Recovery/Adaptation at the NRJ Music Award. In 2023, it received nominations for the Best International Song at the Brit Awards, the Best Collaboration at the MTV Video Music Awards, along with the Dance Song of the Year and Favorite Use of a Sample at the iHeartRadio Music Awards. The song won an award in the category for the Top Dance/Electronic Song at the Billboard Music Awards and garnered two other nominations for the Top Collaboration and Top Global (Excl. U.S.) Song. Marking Rexha's third and Guetta's 11th nomination to date, the song was further nominated for the Best Dance/Electronic Recording at the Grammy Awards. Following its debut in which it amassed more than 140 million streams, the song achieved a significant milestone of over one billion streams worldwide in late January 2023. In 2023, it was ranked as the 14th and 31st most-streamed song on Spotify and Apple, respectively. Also in 2023, Billboard included it in its year-end lists of the best songs of the year.

In the United States, the song attained a position within the top 10 on the Billboard Hot 100 chart in November 2022, reaching its peak at number four on the issue dated 14 January 2023. Topping the Dance/Electronic Songs, Dance/Mix Show Airplay and Mainstream Top 40 charts, it further peaked at number two on the Adult Top 40 and number 21 on the Rhythmic rankings. The song maintained number one position on the Dance/Electronic Songs chart for a total of 55 weeks, marking the second longest-running chart-topper in the ranking's history. Rexha also holds the record as the longest-charting female artist at the number one position on the chart. In June 2023, it received double platinum certification from the Recording Industry Association of America (RIAA) for shifting more than 2,000,000 units in the US. In Canada, the song reached number one on the Canadian Hot 100 on 24 September 2022 and entered the top 50 on the Canada AC, Canada CHR/Top 40 and Canada Hot AC rankings. In July 2023, it garnered a 9× platinum certification from Music Canada (MC) for selling more than 720,000 copies in Canada.

In Australia, the song also peaked at number one the ARIA Singles Chart on 25 September 2022 and reached number four on the New Zealand Singles Chart on 19 September in New Zealand. In 2023, it received double platinum certification from the Recorded Music New Zealand (RMNZ) in New Zealand and quadruple platinum award from the Australian Recording Industry Association (ARIA) in Australia for shifting more than 60,000 and 280,000 units, respectively. In the United Kingdom, the song peaked at number one on the UK Singles Chart on 23 September 2022 and became Guetta's seventh and Rexha's first number one single in the ranking. In November 2024, it garnered a triple platinum certification from the British Phonographic Industry (BPI) for selling more than 1,800,000 copies in the UK. During the New Year's Eve 2022, the song reached number one on the Spotify's global chart and surpassed more than of 11.6 million streams, reentering the UK Singles Chart at number 10.