Helio Shows Julianne His Miami Mambo
10/14/2007 AT 12:00 AM EDT
From the racetrack to the dance studio, DWTS partners Julianne Hough and Helio Castroneves are as inseparable as they are hilarious together. Check out their chemistry on (Castroneves even mambos on Hough's command!) and off the dance floor here. And watch what happens when Helio (jokingly) calls Julianne fat!