ActingPopularity Score 0.7
Y:SY
Also known as:이서연서연Lee Seo-yeonYi Seo-yeon
Total Works
13
1 movies • 12 shows
Avg Rating
—
across rated releases
Box Office
—
worldwide gross
Global Reach
#1
TMDB star index
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.
