Veteran actress Suzanne Somers, The Hunger Games' Willow Shields, Glee actor Riker Lynch, model Charlotte MCKinney, gold medal-winning Olympic gymnast Nastia Liukin and Michael Sam, the first openly-gay player in the National Football League (Nfl), will also compete on the dancefloor on the 10th year of the reality show.
At 14, Shields will be the youngest-ever competitor on the programme.
During the big line-up reveal on U.S. breakfast show Good Morning America on Tuesday (24Feb15), cancer survivor Somers says, "This is my opportunity to see if all the hormones and vitamins I've been taking all these years really pay off, so we'll see!"
And Willis, the eldest daughter of Demi Moore and Bruce Willis, reveals her famous parents will be cheering her on all the way, adding, "They're really excited."
Dancing With the Stars' season 20 will kick off on 16 March (15).