Kelly Osbourne performs with dolls

SLIM AND SEXY: A svelte Kelly Osbourne has joined The Pussycat Dolls onstage at the The Viper Room.

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Kelly Osbourne donned a skimpy outfit to perform with the Pussycat Dolls in Los Angeles last night.

The 25-year-old reality star dropped several dress sizes when she appeared on US show Dancing with the Stars last year and has worked hard to lose even more weight over the past few months.

She is now extremely svelte and chose to show off her new body in a sparkly bra, black PVC corset, fishnet stockings and tiny hotpants when she took to the stage at California’s Viper Room yesterday.

Kelly shared the stage with the Pussycat Dolls burlesque troupe, actress Carmen Electra and Mya at the private show. The women performed a series of sexy show tunes, including Big Spender and 13 Men.

Kelly was extremely excited about the seductive show, taking to her Twitter page minutes before she went on stage to post a picture of her in her tiny costume shooting a smouldering glance into the camera.

Kelly’s mother Sharon Osbourne and her friend Kim Kardashian attended the event to support Kelly, with Kim later tweeting about how impressed she was.

"@MissKellyO just killed it!!! (sic)," Kim wrote.

Actress Eva Longoria and Pussycat Dolls founder Robin Antin also attended the show. Robin launched the group as a burlesque troupe in 1995, before transforming them into the pop act they are today in 2003.

- Cover Media