The cast of "Dancing with the Stars" was ready for their closeup last night -- with almost everyone in this season's crop stepping out for a wild night in L.A.

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Nancy Grace, Ricki Lake, Kristin Cavallari, David Arquette, J.R. Martinez, Elisabetta Canalis, Chaz Bono, Ron Artest, Chynna Phillips and Hope Solo were all spotted at the Next Door Lounge on Monday after the new contestants were officially announced.

Not spotted at the kick-off soiree: Rob Kardashian and Carson Kressley, who will also be competing this season.

Ricki also took to her YouTube account after the news broke, telling her fans she's "terrified" and is "hoping to channel Kirstie Alley, because she was a big inspiration for me last season."

Check out her cute message below: