Crazy (Le Sserafim song)

"Crazy" is a song recorded by South Korean girl group Le Sserafim from their fourth extended play of the same name. It was released as the EP's lead single by Source Music on August 30, 2024. Several remixes of the song were released, including an English version, and remixes with American ballroom performer Dashaun Wesley, British singer PinkPantheress, and French producer David Guetta.
On August 5, 2024, Source Music announced that Le Sserafim would be releasing their fourth extended play titled Crazy on August 30. On August 14, five track sampler videos were released. On August 22, the track listing was released with "Crazy" announced as the lead single. The following day, the highlight medley teaser video was released and the track listing was re-uploaded, with Le Sserafim members Huh Yunjin and Sakura now credited as songwriters on "Crazy". The music videos teasers were released on August 28 and 29.
Prior to the song's release, Le Sserafim posted a dance challenge video to their social media on August 23, showcasing the voguing choreography for the title track. The song was released alongside its music video and the extended play on August 30. Following release, there were several remixes of the song that were released in the proceeding weeks; these include an English version and a remix with American ballroom performer Dashaun Wesley on September 2, a remix featuring British singer PinkPantheress on September 4, and a remix from French DJ and producer David Guetta on September 9.
On October 18, the Japanese version of "Crazy" was announced as Le Sserafim's third Japanese single, which will also include the Japanese version of "Easy" from their third extended play of the same name. The promotion schedule was released a day later. On November 12, the track "Star Signs" from the single was pre-released, serving also as a campaign song for the Japanese fashion retail brand Lumine. "Star Signs" was described as having "city pop elements". "Crazy" (Japanese version) was released on December 11, 2024. On December 18, a week following the release of the single, two remixes of "Crazy" (Japanese version) by JP The Wavy and Chaki Zulu were released.
"Crazy" was written and produced by Score (13), Megatone (13), Iluvjulia, and "Hitman" Bang, with Leven Kali, JBach, Jake Torrey, Supreme Boi, Anthony Watts, Amanda "Kiddo A.I." Ibanez, Huh Yunjin, and Sakura participating in the writing. Described as an EDM-based house song, "Crazy" has lyrics about the emotions someone feels when "they meet someone that drives them crazy". In an interview with NME, the group explained that the song explores "the struggles of loving something so much that you would do anything for it". Sports Trends writer Son Bong-seok described it as having lyrics that hit "like a million volts of electricity" and a chorus that lingers in one's ears.
The music video, directed by Yunah Sheep, was released alongside the song by Source Music on August 30. The video shows the members wearing Y2K-inspired outfits and dancing in various locations, performing voguing choreography alongside the House of Juicy Couture vogue dance team to "maximize the charm of the performance". The members move through various locations, including "a bathhouse, an aquarium, and the deep ocean", and slip on a soap bar and "land perfectly with a voguing move".
On South Korean music programs, "Crazy" won four first place awards.