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YI SEOYEON (Y:SY)

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YI SEOYEON, also known as Y:SY, is a South Korean singer born on January 22, 2000, in Seoul. She was formerly a member of the girl group FROMIS_9, where she was a rapper from January 2018 until the end of 2024. As a solo artist, she debuted on November 17, 2025, with the single "NAKED," which entered Melon's Top 500 chart at number 19 the day after its release.

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YI SEOYEON (Y:SY)

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