Kim Sejeong

Kim Sejeong is a South Korean singer, songwriter, and actress under Jellyfish Entertainment and a former member of the girl group gugudan. Her official Instagram account, @official_kimsejeong, has 806K followers, and her personal account, @clean_0828, has 12M followers. Her first single album, [태양계], was released on December 17, 2025 at 6PM KST. She hosts the Weverse KIM SEJEONG community and the @0828_kimsejeong X account, which serves as her official Twitter. A fan Facebook page, @cutesejeong, has 307,984 followers.