Miley Cyrus was spotted "Big Pimpin'" in Vegas after Britney Spears's "Piece of Me" debut. The "Adore You" singer hosted a party at Beacher's Madhouse, where she partied with Katy Perry, her assistant Cheyne Thomas and her new fling Kellan Lutz.

While Katy Perry chatted with Adam Lambert and Emile Hirsch at the booth she shared with Miley at Beacher's, the "Wrecking Ball" star paraded around the club socializing. She was pictured dancing very seductively on her assistant and Jingle Ball Santa Claus, Cheyne Thomas. Maybe the two were just flirting but you know what they say -- you shouldn't mix work with pleasure.The two seemed to be getting really cozy until Kellan Lutz arrived to the party.

Miles is single, free and living it up so it's understandable that she doesn't want anything serious right now. But when the Twilight star arrived at the club, Miley was seen embracing him as she gave him a kiss on the cheek. Despite Miley's player antics, these two cannot seem to get enough of each other as they have been seen together a lot lately. A source close to Miley even says that the two really "enjoy each other's company."

The singer was not at all coy about how much fun she was having that night. She had a blast at the Britney concert, as she stood the whole time dancing and singing along. She sure seemed to be enjoying herself way more than Katy was... but that's another story. The "We Can't Stop" singer was joined by fellow Disney star Selena Gomez, who is also a huge Britney Spears fan. We can safely say Miley had one of the best nights ever. 

Party it up Miley -- but don't get caught up in the game (hehe).