Yoon Se-eun

Yoon Se-eun, known professionally as Seeun, is part of STAYC, the six-member act that turned High Up Entertainment from a producer-led startup into a proven girl-group company. She debuted on November 12, 2020 with Star to a Young Culture, the first STAYC release and the start of a run built on bright hooks, tight performance detail, and a melody-first identity that cut through the fourth-generation pileup.

Seeun's page matters because STAYC has never worked like a faceless unit. The group's rise depends on distinct member color, and her visibility sits inside the same label ecosystem shaped by Rado and Black Eyed Pilseung. That producer backbone gave STAYC a clear sound from day one and helped turn the act into one of the most durable pop groups of its class.

In the current era, Seeun remains part of a catalog that now stretches from the debut single album to releases like Metamorphic and I WANT IT. That continuity keeps her relevant not just as a member profile, but as part of a group still expanding its live footprint and global fanbase.