Kelly O... My God Is That Her?

9/5/2010 10:15 AM PDT

Kelly O... My God Is That Her?

Christina Aguilera Kelly Osbourne looked amazing when she took the stage with the Pussycat Dolls last week ... and she has Robin Antin -- as well as her stint on "Dancing With the Stars" -- to thank for it.


Kelly performed alongside the like of Mya and Carmen Electra -- something we're told she never would have before she did "DWTS." Kelly O has been telling people she owes her newfound confidence -- not to mention her smoking bod -- to working with the head Pussycatt Doll herself, Robin Antin.

Maybe this time next year, we'll see Bristol Palin on that stage.