MileyCyrus_KellanLutz_122813.jpgKevin Mazur/Getty Images

Revenge is a dish best served cold. And it's as cold as it gets when it comes to Miley Cyrus' latest hookup.

Although Kellan Lutz has denied dating the racy pop star, the Twilight stud and Miley were spotted partying together at Beacher's Madhouse in Las Vegas on Friday. Following Britney Spears' debut of her Sin City residency, the Hannah Montana star hosted a bash to celebrate the performance venue's return to the MGM Grand Hotel & Casino.

Miley reportedly gave Kellan, who's a friend of her ex-fiance Liam Hemsworth, a kiss on the cheek. She later twerked on another man: her assistant and friend Cheyne Thomas. She also bonded with Katy Perry, who was among the stars (such as Selena Gomez, DJ Pauly D, Mario Lopez and Adam Lambert) that attended both the party and Britney's concert.

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Miley entered the vaudeville-inspired show with a full marching band procession featuring Beacher's signature characters, including Elmo, Cookie Monster and Tigger. Mini-Miley and mini-Robin Thicke performed in her honor.