WATCH: Amy Purdy Does the Salsa With Mark Ballas on ‘DWTS’

Tonight, Amy Purdy got paired up with dancer Mark Ballas on Dancing With The Stars instead of her usual partner Derek Hough. Mark Ballas had some trouble at first when taking on Amy Purdy as a partner. It was difficult to figure out how her body moved since she dances without legs. Even so, after some advice from buddy Derek Hough, Ballas rocked it out with Purdy. Derek Hough was very proud of his partner and couldn’t stop screaming for her.