Let's Dance is back and this year sees a whole host of new celebrities ready to dance in front of a live studio audience - and a panel of judges - to try to become Let's Dance champion 2012.

Co-hosting the show again are Steve Jones and Alex Jones, with comedians Keith Lemon, Greg Davis and Graham Norton overseeing the action from the judges seats.

But which star faces are taking part - and who's made it through to the final on 17 March already?

Find out now with our Let's Dance for Sport Relief guide...