Y Teen (Y틴) (MONSTA X & Cosmic Girls (WJSN)) - Do Better
WJSN (Cosmic Girls) (우주소녀) - 모모모 (Mo Mo Mo)
WJSN (Cosmic Girls) - Secret (R&B ver.)
Cosmic Girls (WJSN) - All I Want For Christmas Is You
Dawon (다원 of Cosmic Girls) (WJSN) - 샤랄라 로맨스 (Shalala Romance) (Lucky Romance OST Part 4)
Dawon (다원 of Cosmic Girls) (WJSN) - 샤랄라 로맨스 (Shalala Romance) (Inst.) (Lucky Romance OST Part 4)
Cosmic Girls (우주소녀) WJSN - MoMoMo (모모모) instrumental
Cosmic Girls (우주소녀) WJSN - Secret (비밀이야) instrumental
Junggigo (정기고) & Dawon (다원 Of Cosmic Girls) (WJSN) - 소소하게 조금씩 (Slowly, Little By Little) (Man Living at My House OST Part 4)