Le Sserafim is marking four years since the group's debut with a bevy of new content, according to Source Music on Sunday. The five bandmates began the celebration with a group photo in which they re-created moments from their own childhoods, fit for the theme of a "'Fim'ily Party." They also uploaded playful selfie visuals for "Celebration," a single they dropped last month. On Saturday, the bandmates took to a livestream and shared episodes with fans, saying, "This is just the beginning of Le