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!

5 of 20

PHOTO BOMB

While Cheryl Burke and Lacey Schwimmer bring the sexy for this shot – Mark Ballas has other plans. "Damn you @MarkBallas me and @CherylBurke were really trying to work it!" Tweeted Schwimmer.