Dancing with the Stars: Behind the Scenes!J.R Martinez wigs out! Rob Kardashian & Derek Hough re-enact Lady and the Tramp! See how the contestants goof off when they're not on the parquet!

PEEKABOO!

She's got your back! "Sneaking up behind my new friend," Tweeted Nancy Grace, who played hide-and-seek behind Hope Solo's shoulder. No wonder she's so stealthy: The HLN host says she lost at least 25 lbs. during the competition!