Natural+

- 내 여자친구가 되어줄래 (feat. 이승환 & 이소은)
- Natural Special · 2001
- I Don't Want to Travel with You.
- So Real, Pt. 2 - Single · 2014
- Radio Edit
- So Real, Pt. 2 - Single · 2014
- The One I Loved at the Time
- So Real, Pt. 1 - Single · 2014
- We're on Our Way
- So Real, Pt. 1 - Single · 2014
- Anytime (with Min Who)
- Heaven's Postman (Original Soundtrack) · 2010
- 언제나 그랬듯이 (instrumental)
- 언제나 그랬듯이 - Single · 2010
- 언제나 그랬듯이 (Feat. 한얼)
- 언제나 그랬듯이 - Single · 2010
- 보내는 마음 (별 Ver.) (Inst.)
- Natural Special · 2008
- 보내는 마음 (New Mix) [feat. 양해중]
- Natural Special · 2008
- 라면송 (feat. 김광진)
- Natural Special · 2008
- 다음 세상에서 (feat. 어썸)
- Natural Special · 2008
- 보내는 마음 (feat. 별)
- Natural Special · 2008

Natural Special

Natural Special

2008
The Natural

The Natural

2002
Natural The 1st

Natural The 1st

2001

So Real, Pt. 2 - Single

So Real, Pt. 2 - Single

2014
So Real, Pt. 1 - Single

So Real, Pt. 1 - Single

2014
언제나 그랬듯이 - Single

언제나 그랬듯이 - Single

2010

Lee Seung Hwan
Mayflower
Hwang Seongje
Turtleman
Lee Soeun
Kyo
Cho Kyu Chan
Camilla
015B
Lee So-Eun