1. Irony (아이러니) 2. Bad Boy 3. 미안한 마음 4. Irony (Tae Kwon-Daybreak Remix.)
Released Date : February 13, 2007
The Wonder Years
Tracklist
1. I Wanna 2. 이바보 3. Tell me (Sampling From `Two Of Hearts’) 4. Friend 5. Headache 6. 뭐 어때 7. Wishing On A Star 8. Move 9. 가져가 10. Good Bye 11. Bad Boy 12. 미안한 마음 13. Irony
Released Date : September 12, 2007
So Hot
Tracklist
1. So Hot 2. This Time 3. You`re Out 4. Tell me (Rap Ver.)
Released Date : June 3, 2008
Nobody
Tracklist 1. Intro 2. Nobody 3. I Tried 4. Saying I Love You 5. Nobody (Rainstone Remix) 6. Nobody (Inst.) 7. I Tried (Inst.) 8. Saying I Love You (Inst.) 9. Nobody (Rainstone Remix) (Inst.)
Released Date : September 22, 2008
2 Different Tears
Tracklist
1. 2 Different Tears 2. 2 Different Tears (English Ver.) 3. 2 Different Tears (Remix Ver.) 4. Tell me (English Ver.) 5. So Hot (English Ver.) 6. Nobody (English Ver.)
Released Date : May 16, 2010
Wonder World
Tracklist
1. G.N.O 2. Be My Baby 3. Girls Girls 4. Me, in 5. Sweet Dreams 6. Stop! 7. Dear. Boy 8. 두고두고 9. SuperB 10. Act Cool (Feat.San E) 11. Be My Baby (Ra.D Mix) 12. Nu Shoes
Released Date : November 3, 2011
Wonder Party
Tracklist
1. R.E.A.L 2. Like this 3. Hey Boy 4. Girlfriend 5. Sorry 6. The DJ Is Mine
Released Date : June 3, 2012
Reboot
Tracklist
1. Baby Don’t Play 2. Candle (Feat. Paloalto) 3. I Feel You 4. Rewind 5. Loved 6. John Doe 7. One Black Night 8. Back 9. OPPA (오빠) 10. 사랑이 떠나려 할 때 11. 없어 (GONE) 12. 이 순간