Seohyun is a South Korean singer and actress who debuted in August 2007 as the youngest member of Girls’ Generation and later of its sub-unit TTS. She launched her solo music career with the 2017 EP Don’t Say No before turning her focus to acting.
Her credits span dramas such as Moon Lovers: Scarlet Heart Ryeo, Private Lives, Jinxed at First and Song of the Bandits, the Netflix film Love and Leashes, and stage musicals including Mamma Mia! and Gone with the Wind. In December 2025 she signed with KKUM ENT (Dream Entertainment).