WJSN is a joint girl-group venture spearheaded by two record labels: one South Korean, one Chinese. Composed of both Korean and Chinese members, WJSN are known for delivering majestic synth-pop earworms. • WJSN stands for the four different “units” the group members are broken into: the Wonder Unit, Joy Unit, Sweet Unit, and Natural Unit. Their Korean name translates to Cosmic Girls. • The group originally had 12 members. Yeonjung joined before the release of their 2016 sophomore EP, The Secret, becoming the 13th and youngest member. • The group has released Chinese versions of singles like “MoMoMo,” “Secret,” “I Wish,” and “Dreams Come True.”