Pro Bono Part.1 (Original Soundtrack) - Single

All The Way - EP

Why Her? (Original Television Soundtrack) Pt.4 - Single

The day in December - Single

Back in Time (The Moon During the Day) [Original Soundtrack] - Single

START-UP (Original Television Soundtrack), Pt. 17 - Single

Do You Like Brahms? (Original Television Soundtrack) Pt. 9 - Single

Melting Me Softly, Pt. 1 (Original Television Soundtrack) - Single

The 4th Album, Pt. 2 'Mood Indigo'

The Beauty Inside, Pt. 4 (Original Television Soundtrack) - Single

The 4th Album, Pt. 2 #1 Will Be a Start - Single

The 4th Album, Pt. 1 Nonfiction

Mask Singer 122th - Single

The Emperor : Owner of the Mask (Original Soundtrack) Part.8 - Single

The Day - Single

투유 프로젝트 슈가맨, Pt. 15 - Single

Yong-pal (Music from the Original TV Series) Pt. 5 - Single

[Re:] - EP

Pinocchio, Pt. 5 (Original Television Soundtrack) - Single

One Fine Day - EP

Peppermint Chocolate - Single

My Love From the Star (Original Soundtrack) Part 2 - Single

Duble Kick Project, Vol. 04 - Single

Will in FALL - EP

The Third Album, Pt. 2 - Love Blossom

청담동 앨리스 (Original Television Soundtrack), Pt. 4 - Single

Starship Planet 2012 - Single

The 3rd Album, Pt. 1

Arang and the Magistrate (Original Soundtrack), Pt. 7 - Single

지금처럼 We Never Go Alone - Single

I Need You

My Last Love (Original Television Soundtrack), Pt. 1 - Single

My Heart Is Beating

Big Thing, Pt. 6 (Original Sound Track) - Single

Missing You

Dropping the Tears

Love119 - EP

쩐의전쟁 (Original Television Soundtrack) - EP