내일 그대와 (Original Television Soundtrack), Pt. 1 - Single

K-POP · 2017

내일 그대와 (Original Television Soundtrack), Pt. 1 - Single

Stay For Me (feat. Seo In Guk) - Single

2022
With Laughter or with Tears - EP

2013
Death's Game Original SoundTrack Part.2 - Single

2023
Shake It Up - Single

2011
LOVE&LOVE - Single

2022
Perfect Fit - EP

2012
Just the Way We Love (Original Television Soundtrack From "Reply 1997") - Single

2012

Seo In Guk Essentials

Apple Music K-Pop

My Love From the Star (Original Television Soundtrack), Pt. 7 - Single

Sung Si Kyung
Master's Sun (Original Television Soundtrack), Pt. 4

YOON MIRAE & Oh Joon Sung