Le Sserafim uploaded a teaser trailer for “Celebration” on Wednesday via Source Music. A snippet of the song includes lyrics being played in the background of a rave scene while the five bandmates give a glimpse of the choreography, banging their heads. The video at the end zooms in on Sakura’s face slowly as the skin of her cheek disintegrates, turning to black just before revealing what is underneath. “Celebration” will be part of the group's second full album, “Pureflow Pt. 1,” which is due o