Seo In Guk

- All for You
- Reply 1997 - Love Story, Pt. 1 (Original Television Soundtrack) - Single · 2012
- Because It's Christmas
- Jelly Christmas 2012 Heart Project - Single · 2012
- Distant Fate
- Doom at Your Service (Original Television Soundtrack), Pt. 7 - Single · 2021
- Fallen
- Fallen - Single · 2022
- Stay For Me (feat. Seo In Guk)
- Stay For Me (feat. Seo In Guk) - Single · 2022
- No Matter What
- Master's Sun (Original Television Soundtrack), Pt. 7 · 2013
- Out of time
- 2024 SINGLE ALBUM [SEO IN GUK] - Single · 2024
- Winter Propose
- Jelly Christmas 2013 - Single · 2013
- Even If There's No Miracle
- Death's Game Original SoundTrack Part.2 - Single · 2023
- Seasons of the Heart
- Seasons of the Heart - Single · 2016