Y:SY
Acting
- Born:
- 2000-01-22
- Place of birth:
- Seoul, South Korea
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
Duckbap House
2025
Jae Joong and Friends
2023
fromis_9 concert ＜LOVE FROM.＞ IN JAPAN
2023
fromis_9's Autumn Night
2022
fromis_9's Summer Night
2022
Lee Mujin Service
8.52022
The Game Caterers
8.72021
The Silence Of IDOL
2020
We See Winter
6.52019
Welcome to Heal Inn
6.52018
Fromis's Room
10.02017
프롤로그_프로미스의 방 엿보기
2017
Idol School
9.02017