LE SSERAFIM released the music video teaser for their new song "CELEBRATION" on the 22nd through HYBE Labels' YouTube channel and official SNS. The teaser video features the five members (Kim Chaewon, Sakura, Heo Yunjin, Kazuha, Hong Eunchae) appearing as they open a massive door, showcasing visual transformations such as eyebrow piercings and green-toned eye makeup.

The teaser is edited by intercutting scenes of LE SSERAFIM members and a monster. The contrast between the members dancing in a crowd and the monster crossing deserts and snowy fields is highlighted, and toward the end of the video, a scene appears where LE SSERAFIM performs on stage facing the monster. The video includes intense beats and lively rhythms, revealing a section with the lyrics "Time To Celebrate."

In the performance, the five members displayed unique choreography involving shaking their heads while moving forward, along with precise movements. According to Source Music, "CELEBRATION" is a song that celebrates the moment of acknowledging fear and gaining the inner strength to face it, conveying a bright energy and a party-like atmosphere that everyone can enjoy together. Members Kim Chaewon and Heo Yunjin participated in the song's production. Additionally, electronic pop duo Icona Pop's Caroline Hjelt and Aino Jawo joined as songwriters.

The full audio and music video of "CELEBRATION" will be released on the 24th at 1 PM. LE SSERAFIM's second full-length album "PUREFLOW pt.1," which includes this song, is scheduled for release on May 22. This album is their first full-length release in about three years since 2023's "UNFORGIVEN."