Y:SY
ActingBorn 2000-01-22Seoul, South Korea
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 (13 titles)
tvFromis's Room
2017 · ★ 10.0
tvIdol School
2017 · ★ 9.0
tvThe Game Caterers
2021 · ★ 8.7
tvLee Mujin Service
2022 · ★ 8.5
tvWelcome to Heal Inn
2018 · ★ 6.5
tvWe See Winter
2019 · ★ 6.5
moviefromis_9 concert ＜LOVE FROM.＞ IN JAPAN
2023 · ★ 0.0
tv프롤로그_프로미스의 방 엿보기
2017 · ★ 0.0
tvJae Joong and Friends
2023 · ★ 0.0
tvfromis_9's Summer Night
2022 · ★ 0.0
tvfromis_9's Autumn Night
2022 · ★ 0.0
tvDuckbap House
2025 · ★ 0.0
tvThe Silence Of IDOL
2020 · ★ 0.0