From the DVD of Step Up 2:
Jabbawockeez
Music:
0:08-0:18 - Custom song (thats what i heard)
0:19-1:08 - Stuck by Fingerbangerz
1:09-1:18 - Don't Say Nothin' by The Roots
1:19-1:28 - We Came Here To Party by Tony Yayo
1:29-1:37 - just someone talking
1:38-3:34 - We Came Here To Party (custom DJ remix) by Tony Yayo