Julianne Hough's new workout DVD, Cardio Ballroom is now in stores! Julianne says that it was the fans that talked her into making the video.  "Every time I meet a Dancing with the Starsfan, they're like, 'Man, I wish I could dance like that. Is that how you stay in shape?'" the 21-year-old Hough tells TVGuide.com. "And I say [yes] and they go, 'I wish I could take lessons from you or a pro.' So I thought, why not do something that's dance-related?"