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!

THE FANTASTIC FOUR

The competition may be hot on the dance floor, but backstage, two of Dancing with the Stars's final three couples – Karina Smirnoff, J.R. Martinez, Ricki Lake and Derek Hough – stay chummy before going foot-to-foot in the ballroom.