[Single] Yoo Yeonjung (유연정) – Meloholic (멜로홀릭) OST (Part 4) November 22, 2017 Cosmic Girls kpop kpop lrc kpop lyrics lrc lyrics Yoo Yeonjung +
[Single] Yoo Yeonjung (유연정), Dawon (다원) – he Snow Queen 3: Fire and Ice (눈의 여왕 3 – 눈과 불의 마법 대결) OST July 28, 2017 Cosmic Girls Dawon kpop kpop lrc kpop lyrics kpop ost lrc lrc lyrics Yoo Yeonjung +
[Single] Yoo Yeonjung (유연정) – Queen Of 7 Days (7일의 왕비) OST (Part 1) July 28, 2017 Cosmic Girls kpop kpop lrc kpop lyrics lrc lyrics Yoo Yeonjung +
[Single] Brother Su (브라더수), Yoo Yeonjung (유연정) – Loveplaylist 2 (연애플레이리스트2) OST (Part 1) July 27, 2017 Brother Su Cosmic Girls kpop kpop lrc kpop lyrics kpop ost lrc lrc lyrics Yoo Yeonjung +
[Single] Giriboy (기리보이), Junggigo (정기고) – Vintage Box (빈티지박 스) Vol.3 December 19, 2016 Cosmic Girls Giriboy I.O.I Junggigo K.Will kpop kpop lrc kpop lyrics lrc lyrics Mad Clown Mad Town Yoo Seungwoo Yoo Yeonjung +