David Arquette is leading the line-up for this year's 'Dancing with the Stars'.

With the new cast unveiled by hosts Brooke Burke and Tom Bergeron last night (29.08.11), Chaz Bono, chat show host Ricki Lake, George Clooney's ex-girlfriend Elisabetta Canalis, reality TV star Rob Kardashian and former 'The Hills' beauty Kristin Cavallari will also be competing in season 13 of the ABC show.

Making up the 12 personalities appearing in the upcoming series will be Los Angeles Lakers player Ron Artest, soccer star Hope Solo, TV host Nancy Grace, singer-and-actress Chynna Philips, fashion guru Carson Kressley and Iraq war veteran and soap star J.R. Martinez.

Ryan O'Neal was originally set to join the cast, but his publicist had to pull the plug on his appearance because the 70-year-old actor has not yet recovered from recent knee-replacement surgery.

Chaz - the son of Sonny and Cher, who was born a female - has been praised for his participation in 'Dancing with the Stars' by the Gay and Lesbian Alliance Against Defamation, who have described his appearance as a "tremendous step forward" for transgender representation in the US.

Herdon Graddick, senior director of programs for GLAAD, said in a statement: "At a time when transgender representation in the media is sorely lacking, Chaz Bono joining the cast is a tremendous step forward for the public to recognise that transgender people are another wonderful part of the fabric of American culture.

"Appearing on such a high-profile show will allow millions of Americans to get to know him in a whole new light."

'Dancing with the Stars' hits screens on September 19.