HowL

- Perhaps Love
- Princess Hours (Original Television Soundtrack) · 2006
- Love U
- 꽃보다 남자 BEST COLLECTION (Original TV Series Soundtrack), Pt. 1 · 2009
- Mr. Queen
- Mr. Queen (Original Television Soundtrack) · 2021
- Iron tango
- Mr. Queen (Original Television Soundtrack) · 2021
- Secret of the well
- Mr. Queen (Original Television Soundtrack) · 2021
- Lost memory
- Mr. Queen (Original Television Soundtrack) · 2021
- Miracle
- 궁S (Original Television Soundtrack) · 2007
- Palace
- Mr. Queen (Original Television Soundtrack) · 2021
- No touch
- Mr. Queen (Original Television Soundtrack) · 2021
- Other world
- Mr. Queen (Original Television Soundtrack) · 2021
- Perhaps Love (Remix Version)
- Princess Hours (Original Television Soundtrack) · 2006
- Sweet Sorrow
- Love to Hate You (Original Soundtrack from the Netflix Series) · 2023
- God of Sun (Slow Version)
- A Man Called God (Original Soundtrack) · 2010