Kim Yooyeon (김유연) is a South Korean singer and entertainer signed to MODHAUS. She is a current member of the massive, 24-member, multi-national girl group tripleS. She is also leader of the tripleS sub-units Acid Angel from Asia and EVOLution and a member of ACID EYES. She got her start in 2021 as a contestant on the survival show My Teenage Girl. She was born on February 9, 2001 in Banpo-dong, Seocho-gu, Seoul, South Korea.