9.0
TV
Acting
Y:SY
- Born
- (age 26)
- Birthplace
- Seoul, South Korea
- Credits
- 13 titles
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.
Signature work
Known For
Acting credits 13
| Year | Title | Role |
|---|---|---|
| 2025 | Duckbap House TV | Self (1 ep) |
| 2023 | Jae Joong and Friends TV | (1 ep) |
| 2023 | fromis_9 concert ＜LOVE FROM.＞ IN JAPAN Film | |
| 2022 | fromis_9's Autumn Night TV | Self (13 ep) |
| 2022 | fromis_9's Summer Night TV | Self (9 ep) |
| 2022 | Lee Mujin Service TV | Guest (1 ep) |
| 2021 | The Game Caterers TV | Self (3 ep) |
| 2020 | The Silence Of IDOL TV | Self (2 ep) |
| 2019 | We See Winter TV | (2 ep) |
| 2018 | Welcome to Heal Inn TV | (4 ep) |
| 2017 | Fromis's Room TV | (5 ep) |
| 2017 | 프롤로그_프로미스의 방 엿보기 TV | (1 ep) |
| 2017 | Idol School TV | Self - Contestant (11 ep) |