* [L] denotes lyrics*

ALBUMS

=====

Love Letter 
Released: 2007.09.20
Songs:

1. 너니까 (Because It’s You) [L]
2. Good-Bye New York [L]
3. 통화 연결음 (Phone Call) [L]
4. 가버려 (Leave) [L]
5. 너니까 (Because It’s You) / Instrumental
6. Good-Bye New York / Instrumental
7. 통화 연결음 (Phone Call) / Instrumental
8. 가버려 (Leave) / Instrumental

=====

Winter Story
Released: 2007.11.15
Songs:

1. 너니까 (Because It’s You) / Winter Version [L]
2. 너니까 (Because It’s You) / Winter Version + Instrumental

=====

2008 Is My Summer
Released: 2008.07.03
Songs: 

1. 사랑밖엔 난 몰라 (I Only Know Love)
2. 고무줄 (Sub. COOL하게 컴백 – Comeback) 
3. My Girl
4. 사랑밖엔 난 몰라 (I Only Know Love) / Instrumental
5. 고무줄 (Sub. COOL하게 컴백 – Comeback) / Instrumental
6. My Girl / Instrumental

=====

Coming Soon..!!
Released: 2009.04.08 
Songs: 

1. 너는 모르지 (You Don’t Know)
2. 너는 모르지 (You Don’t Know) / Instrumental

=====

Midnight Circus
Released: 2011.06.09
Songs: 

1. Girl With a Accordion (Intro)
2. 꼭두각시 (Puppet) [L]
3. Midnight Circus [L]
4. Let’s Talk About (Feat. 지아)
5. 기도 (Pray) / Preview
6. Midnight Circus / Instrumental

=====

Pray
Released: 2011.08.05
Songs: 

1. 기도 (Pray) [L]
2. 기도 (Pray) / Instrumental

=====

The Grasshopper
Released: 2012.01.13
Songs:

1. 나쁜 남자 [L]
2. 술래잡기 [L]
3. 베짱의 천가 [L]

=======================================

COLLABORATIONS / FEATURING / OST

Little Mom Scandal
Released: 2008.06.03
Songs: 

1. 아파한다 (Hurt)

=====

Mamma Mia
Released: 2010.08.20
Songs: 

1. Mamma Mia

=====

The Greatest Love OST
Released: 2011.05.18
Songs: 

1. 두근두근 (Pit-A-Pat)