Miley Cyrus, Katy Perry, Adam Lambert Rock Out At Launch Of Britney Spears’ “Piece Of Me” Show In Las Vegas: PHOTOS

Britney Spears Official Arrival At Planet Hollywood Resort & Casino
Britney Spears launched her two-year Las Vegas residency last night with the debut of the Piece of Me show at Planet Hollywood. Since it’s a stationary show and not a tour, the production values were higher, the dancers were hotter and even the celebrity guests were bigger: Opening night drew Katy Perry, Adam Lambert, Mario Lopez, Banshee actress Ivana Milicevic and Miley Cyrus, who was caught twerking to the music from the front row (see video below).

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Grand Opening Of Britney Spears' Show "Britney: Piece Of Me"

Grand Opening Of Britney Spears' Show "Britney: Piece Of Me"

"Britney: Piece Of Me" Grand Opening Premiere

"Britney: Piece Of Me" Grand Opening Premiere

Photos: Getty Images,  Britney Spears on Facebook