Junhyung (BEAST) & BTOB - First Love
Junhyung (BEAST) & BTOB - As I Told You (OST: MonSTAR)
Junhyung (BEAST) & BTOB - 시간이 흐른 뒤엔 (After Time Passes) (OST Monstar)
Men In Black (Junhyung (B2ST/BEAST) & BTOB) - First Love (Monstar OST)
Junhyung (BEAST) & BTOB - 첫사랑 First Love (Monstar OST Part.7) (inst.)
Junhyung (BEAST) & BTOB - After Time Passes (MonStar OST)
Junhyung (BEAST), BTOB, Ha Yeon Soo - Past Day [Monstar OST ]
Junhyung (BEAST / B2ST) - After Time Passes (ft. MinHyuk, ChangSub, HyunSik and SungJae of BTOB)
Men In Black (Junhyung (BEAST) & BTOB) - First Love (Monstar OST)
[MonStar OST] Junhyung (BEAST) & BTOB (비투비) - 첫사랑 (First Love)
BTOB & JUNHYUNG [BEAST] - After Time Passes (OST MonStar/МонСтар)
Men In Black (Junhyung (B2ST) & BTOB (BEAST) - -
JunHyung (Beast (B2ST)) feat. MinHyuk, ChangSub, HyunSik and SungJae (BTOB) - After Time Passes
[Ep 1][MonStar OST] Junhyung (BEAST) & BTOB & Ha Yeon Soo - Past Day (지난 날) (Inst.)
Yong JunHyung (용준형 of BEAST) (B2ST) & BTOB (비투비) - 시간이 흐른 뒤엔 (After Hours) (Inst.) (MonStar OST Part 2)