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Y:SY
Acting · 2000

Y:SY

Born Jan 22, 2000·26 years old·Seoul, 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.

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Filmography

13 titles
Y:SY · awatch.fun