Crazy (Le Sserafim EP)

On August 5, 2024, Source Music announced that Le Sserafim would be releasing their fourth extended play (EP) titled Crazy, with pre-orders being made available at Target, Weverse Shop, and other retailers; a schedule for the group's promotional activities was also released.^[1] The group had previously teased the EP's title in the music video for "Smart", with the word "Crazy" written on a cup in one scene of the video.^[2] Prior to the EP's announcement, the group previewed the track "1-800-Hot-N-Fun" during their performance at Coachella on April 13, 2024.^[3] It was later confirmed to be a track on the EP and that American producer BloodPop worked on the song.^[4] During the August 15th episode of Eunchae Star Diary, Le Sserafim member Hong Eun-chae talked about the group's upcoming release, describing the title track as being similar to their previous single "Antifragile".^[5] In an interview with NME, the group explained that the project would explore "the struggles of loving something so much that you would do anything for it".^[6]

The comeback trailer "Chasing Lightning" was released on August 13,^[7] with track samplers being released the following day.^[8] Concept images for the different versions of the album were revealed from August 16 to 19.^[9] The track list was revealed on August 22, with Le Sserafim member Huh Yunjin revealed to have worked on the writing and production of the final track "Crazier".^[10] The highlight medley for the album was released the following day,^[11] and the track list was re-uploaded with Huh Yunjin and Sakura now credited on the title track.^[12] This was followed by two music video teasers for "Crazy" on August 28 and 29.^[13][14] The EP was released along with the music video for the title track on August 30, 2024.

Crazy contains various genres ranging from EDM and house, to rock and hip-hop.^[8] The intro track "Chasing Lightning" contains a techno-style instrumental with the narration "We can't change the weather, but we just chase lightning".^[7] The title track "Crazy" is described as an EDM-based house song with lyrics about the emotions someone feels when "they meet someone that drives them crazy". "Pierrot" is a hip-hop song that samples Kim Wan-sun's song "Pierrot Smiling at Us", with parts of the track "hidden throughout the [former's] melody and theme".^[15] The English track "1-800-Hot-N-Fun", which was produced by American producer BloodPop, is a rock song with hip-hop elements that contain "intense guitar riffs" and "rhythmic rap" from the members.^[3][11] The closing track "Crazier", produced by Huh Yunjin, explores the group's tender side, with a message that "inspires listeners to wholeheartedly embrace and love things that make their heart race".^[11]

Prior to the EP's release, Le Sserafim posted a dance challenge video to their social media on August 23, showcasing the voguing choreography for the title track.^[16] To celebrate the release of the EP, Source Music hosted an album release party in Seoul on August 29 and 30, featuring photo exhibitions and a listening session with commentary from the members,^[17] while Geffen Records hosted a release party in Los Angeles on August 30.^[18] The group embarked on the Easy Crazy Hot Tour in 2025 to promote the EP along with their other EPs, Easy (2024) and Hot (2025).^[19]

David Crone of AllMusic called the album "a notably more foot-forward release" than the group's past works and opined that "Crazy" was "destined to become a club staple."^[20] Han Seong-hyeon of IZM awarded the album 2 out of five stars, criticizing the songs' lyrics and unfavorably comparing the album to Western music including Taylor Swift's album Reputation (2017) and Ariana Grande's song "Yes, And?" (2024).^[21]

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