'Dancing With the Stars' New Season Cast Revealed on 'Good Morning America'

The "Dancing With the Stars" cast for season nine was announced today live on "Good Morning America."

The stage is set for new "DWTS" contestants to showcase their fancy footwork when "Dancing With the Stars" returns for its ninth season Monday, Sept. 21.

The celebrity cast, which includes an Osmond, a cowboy and a former House majority leader, will team with professional dancers and face off on television's hit ballroom competition.

Gymnast Shawn Johnson was the winner on the last season of the show.

Host Tom Bergeron was in Times Square today to announce the cast.

CLICK HERE for photos of the full cast.

Macy Gray first burst onto the music scene with her debut album "On How Life Is" and the hit single "I Try," both of which went to No. 1. She has gone on to sell more than 20,000,000 albums worldwide and has won and has been nominated for five Grammy Awards and six MTV Video Music Awards. She has collaborated on stage and in the recording studio with some of music's greatest artists, including Justin Timberlake, Carlos Santana, Erykah Badu, Fergie, will.i.am (Black Eyed Peas), John Frusciante (Red Hot Chili Peppers) Nas and Natalie Cole. Macy has also appeared in numerous films including "Spider Man," "Training Day," "Idlewild" (with Outkast) and the award-winning HBO Film "Lackawanna Blues."

Known for her starring roles in the television series "Clarissa Explains It All" and "Sabrina the Teenage Witch," Hart began her career at the early age of 4 with television commercials and various television appearances. She starred in the film "Drive Me Crazy" alongside "Entourage's" Adrian Grenier, as well as in the ABC Family Original Movie "Holiday in Handcuffs" opposite "Dancing With the Stars" alumni Mario Lopez, which was the highest-rated program in the history of the network. In 2009, Hart starred in another ABC Family Original Movie, "My Fake Fiance" that garnered huge ratings as well. In 1993, Hart started her own production company, Hartbreak Films, and is set to release her first thriller film, "Nine Dead," to DVD in January 2010. Hart and husband Mark Wilkerson are the proud parents of two sons, Mason, age 3 and Braydon, 17 months.