Park Jang Hyeon

- Christmas for Everyone
- Jelly Christmas 2011 - Single · 2011
- Sigh
- Best of The Next K-Pop Star Death Match, Pt. 2 · 2021
- Before sadness comes
- Kook-Ka-Bu, Pt. 5 - EP · 2022
- Love Is Like A Snowflake
- Kook-Ka-Bu, Pt. 28 - Single · 2022
- Winter Love
- Best of The Next K-Pop Star Semi-Final Rival Match · 2021
- As life goes on
- Kook-Ka-Bu, Pt. 15 - Single · 2022
- Re-Dream
- Re-Dream (Original Soundtrack From 'Caught Between Marriage & Divorce') · 2022
- Lost child
- Best of The Next K-Pop Star Medley Team Mission Ace Match - EP · 2021
- No one else like that
- Kook-Ka-Bu, Pt. 34 - Single · 2022
- I still love you a lot
- Best of The Next K-Pop Star Final 1R Legend Mission · 2021
- Don’t go Don’t go
- Kook-Ka-Bu, Pt. 4 · 2022
- I Hate You
- Saddle the wind, Pt. 1 · 2022
- We Should've Been Friends
- Kook-Ka-Bu, Pt. 35 - Single · 2022