Grammy Awards 2010

Katy Perry

After the final chords had been struck at the 51st annual Grammy Awards, winners and just-happy-to-be-nominateds alike fanned out around Los Angeles to continue the celebration at various after-parties. "[The Grammys] is the event that you watch in your jammies, eating popcorn when you're a nine-year-old girl, and wish. I can't believe I'm here!" said a still-stunned Katy Perry, who swapped her sweeping Basil Soda gown for a sassier dress from Jenny Packham before making her way to the EMI bash, held at SLS in the Beverly Hills Hotel.

—With reporting by Brantley Bardin, Meg Hemphill, Kwala Mandel, Andrea Simpson and Lindzi Scharf

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