Dayoung

Dayoung is a South Korean singer and, more recently, solo artist, best known as the lead vocalist of WJSN (Cosmic Girls) under Starship Entertainment. With a warm, distinctive tone and a reputation as the group’s caring “mom,” Dayoung has been a steady presence in WJSN since its 2016 debut, and in 2025 she finally stepped out with her own solo release. Here’s a full rundown for anyone searching WJSN Dayoung, Cosmic Girls members, or K-pop lead vocalists.

Who Is Dayoung?

Born Im Da-young on May 14, 1999, in Jeju Province, South Korea, Dayoung first appeared on TV as a 12-year-old contestant on the audition show K-pop Star in 2011. She later trained under Starship Entertainment for four years and was revealed as a member of upcoming girl group WJSN on December 10, 2015, as part of the Wonder Unit. She officially debuted with the group’s 12-member lineup on February 25, 2016.

Role in WJSN and WJSN CHOCOME

Dayoung is one of WJSN’s lead vocalists, known for her clear, youthful tone and steady live performances. She is also part of the group’s first official sub-unit, WJSN CHOCOME, alongside Soobin, Luda, and Yeoreum, which has released two single albums since debuting in 2020.

Health Journey and Solo Debut

In April 2021, Starship Entertainment announced Dayoung would step back from all group activities to focus on treating a severe autoimmune disease — a period fans followed with concern and support. She returned to full WJSN promotions and, on September 9, 2025, finally launched her own solo career with the digital single Gonna Love Me, Right?, led by the track “Body,” marking a major milestone in her artistic growth.

Personality and Fun Facts

Within the dorm, Dayoung is affectionately called WJSN’s “mom” for waking members up and cooking for them; she’s considered one of the group’s best cooks alongside Eunseo. A health-conscious eater who skips chocolate and soda, she’s also a pet owner to her dog Beom and shares a fun resemblance joke with comedian Shin Dong-yeop that earned her the nickname “Dayeob.” Whether you’re following her as a WJSN lead vocalist or a rising K-pop soloist, Dayoung’s warmth and resilience make her one of the group’s most beloved members.