Pussycat Dolls return to Viper Room with Kelly Osbourne, Carmen Electra

After world tours, a Las Vegas lounge and several spin-off reality TV series, the Pussycat Dolls returned to their humble roots Wednesday night, putting up a show at Los Angeles' Viper Room.

At the birthplace of Robin Antin's hybrid burlesque act, the Dolls closed out Bing's Sunset Strip Summer Concert Series, with special guest stars Kelly Osbourne, Mya and Carmen Electra. 

Kelly's mom, Sharon Osbourne, showed up with bells on, with her son Jack, to catch her daughter get down in a sailor's outfit with several male dancers. 

Pals Eva Longoria Parker and Kim Kardashian cheered from the crowd alongside ...

... actress Malin Akerman, "America's Got Talent" judges Piers Morgan and Howie Mandel, and a newly single Johnathon Schaech.

The ladies performed top-40 hits including "Don't Cha" and "Buttons" from the Pussycat Dolls pop group, fronted by Nicole Sherzinger. 

Electra's return to the Dolls stage marks a significant reunion with the dancing troupe, which she parted ways with around 2003 when the band was formed. 

-- Matt Donnelly
Twitter.com/MattDonnelly

Photo: Kelly Osbourne, Mya and Carmen Electra suit up as Pussycat Dolls.

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