Roller Jam

The first five teams kick off the competition as Terrell Ferguson, Johnny Weir and Pepa critique their routines for technique and creativity.

The eight remaining skate crews are paired off for four head-to-head battles before an elimi-skate sends three teams home.

Jazzercise legend Judi Sheppard and platinum artist Debbie Gibson help usher in the 80s -- but another injury threatens a crew’s place in the final.