Kelly Osbourne, daughter of Ozzy and Sharon, has become super skinny and hot ever since her gig on ‘Dancing with the Stars.’ Kelly, who came in 3rd place with the help Louis van Amstel, is an aspiring punk rock singer looking to hit it big. The reality star took another step in the right direction and took the stage at The Pussycat Dolls show at the Viper Room on LA’s Sunset Strip, and performed a sexy number which really showed off her new slim frame.