Singer Jewel and real-life hubby Ty Murray are set to duke it out against each other on the dance floor. Also, quick-footed cutie Julianne Hough is pairing up with her beau, country crooner Chuck Wicks, to battle their competitors. The newly engaged pro-dancers Maksim Chmerkovskiy and Karina Smirnoff will also take each other on in the dance competition. Olympic gymnast Shawn Johnson, 17, has joined the cast as the youngest competitor ever. Pop star Belinda Carlisle (of the Go Gos), Denise Richards, former NFL star Lawrence Taylor, Lil' Kim, Steve-O, Apple founder Steve Wozniak, actors David Alan Grier, Gilles Marini and TV personality Nancy O'Dell finish out the celebrity cast/ExtraTV. More here.

Question: Are you a good dancer?