In addition, Olympic gold medalist swimmer Natalie Coughlin revealed Tuesday on her Twitter page that she has been paired with Alec Mazo.
"So I got partnered with Alec!!! So good because we both went to Cal Berkeley and studied Psychology at the same time. Go Bears!" posted Coughlin. "Practice is going well although it's a lot harder than I thought!!! I didn't know Alec when we went to Cal (even though we probably shared classes!)."
ABC will officially reveal Dancing with the Stars' ninth-season pairings on Monday's Good Morning America broadcast.
In addition to the aforementioned celebrities, the other celebrities competing for the mirror ball trophy are singer Aaron Carter; martial artist Mark Dacascos; indicted former House Majority Leader Tom DeLay; singer Macy Gray; actress Melissa Joan Hart; former supermodel Kathy Ireland; retired NFL star Michael Irvin; model and actress Joanna Krupa; UFC mixed martial arts fighter Chuck Liddell; singer Mya; former The Osbournes star Kelly Osbourne; and professional snowboarder Louie Vito.
Dancing with the Stars' ninth season will premiere with a two-hour performance episode on Monday, September 21 at 8PM ET/PT.
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