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Y:SY
Actor

Y:SY

22 Jan 2000Born
26Age
5Credits
Seoul, South KoreaBirthplace

Biography

Lee Seo-yeon, known professionally as Y:SY, is a South Korean singer-songwriter and rapper under H1GHR Music. She is a former member of the girl group fromis_9, formed through the reality survival show Idol School (2017). She left the group in 2024.

She made her solo debut on November 17, 2025, with the digital single Naked.

Known for

Filmography

  1. 2023fromis_9 concert ＜LOVE FROM.＞ IN JAPANFilm
  2. 2019We See WinterSeries (2 episodes)
  3. 2018Welcome to Heal InnSeries (4 episodes)
  4. 2017Fromis's RoomSeries (5 episodes)
  5. 2017프롤로그_프로미스의 방 엿보기Series (1 episode)

Biography and credits from TMDB. This website uses TMDB and the TMDB APIs but is not endorsed, certified, or otherwise approved by TMDB.