Miley Cyrus' Star-Studded 18th Birthday Bash

Making for quite the memorable evening, Miley Cyrus followed up her 2010 American Music Awards performance with a night of celebration at Trousdale in Los Angeles on Sunday (November 21). Donning a black bra-like top and matching leather pants, the "Hannah Montana" star was greeted by a slew of Hollywood stars including Demi Moore and Rumer Willis while ringing in an early 18th birthday fete. With her mother Tish also on hand, Miss Cyrus also welcomed the likes of John Mayer, Kelly Osbourne, Kyle Massey and Ke$ha, with an E! source telling, "John's presence was the buzz of the party, and he wished Miley a happy birthday." Also partaking in a danceoff to Pink's "Raise Your Glass" with Ke$ha during the night, Miley turned heads while offering up a PDA moment as things wound down with rumored new flame Avan Jogia.

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