We knew Mischa Barton's career wasn't going great -- but we didn't think it was going that badly! The former TV star-turned-nobody is coming back to the small screen on the upcoming season of Dancing With the Stars, a source confirms to Us Weekly.

Barton is best known for being a mess and for playing Marissa Cooper in The O.C., until her character's shocking death in 2006's season 3 finale.

Some of the other cast of characters that will be twirling their way onto ballroom include Fuller House's Jodie Sweetin, America's Next Top Model cycle 22 winner Nyle DiMarco, and The Real Housewives of Atlanta's Kim Fields. The entire list of contestants will be announced next Tuesday on Good Morning America.

There will be a lot of changes for the 22nd season of ABC's hit show -- Derek Hough won't be mamboing his heart out because he's prepping for his turn in Singin' in the Rain on Broadway. Julianne Hough will also not be coming back to the judges' panel. However, Len Goodman, who wasn't on season 21, will be back.