Dancing with the Stars: Meet Season 13's CompetitorsDavid Arquette, Kristin Cavallari, Nancy Grace, Chaz Bono and more will step into the ballroom on Sept. 19


"I'm a bundle of nerves," the newly engaged star, 42, confesses. "I keep going back and forth with 'what am I getting myself into?' and 'I can't wait to start.'" Whether she's ready or not, the former talk show host will likely have her very own "Go, Ricki!" cheering section.