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!

BRO DOWN

Finalist Rob Kardashian goofs off with David Arquette, who, along with partner Kym Johnson, was eliminated seventh in the competition. Kardashian's pro partner Cheryl Burke says he's ready for the final dance: "We live, we eat, we breathe this competition."