SS501 S.T 01 Now

A-side · 1–4

1. 01 Stand by Me 2006 3:26 Play
2. 02 Four Chance 2006 3:37 Preview
3. 03 겁쟁이 2006 3:33 Play
4. 04 Unlock 2006 3:56 Play

B-side · 5–7

1. 05 Bye Bye 2006 3:33 Play
2. 06 Confession 2006 3:50 Preview
3. 07 Unlock (Heavy Edition) [Feat. Kim Se Hwang] 2006 3:55 Play