Miley cyrus birthday party details

Details Inside Miley
Cyrus’ S&M-Themed 21st
Birthday Party at
Beacher’s Madhouse

Getty Images

It’s her party, she can do what she wants!

When you’re a party animal and constantly the center of attention—like Miley Cyrus—how do you go about making your 21st birthday extra special? By going all out—which is exactly what Miley did to celebrate on Nov. 24, the day after her birthday!

An eyewitness told In Touch that to celebrate turning the big 2-1, the starlet went to her favorite party destination, Beacher’s Madhouse, which was transformed to fit Miley’s theme for the night—S&M!

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“All of the cast of characters from Beacher’s were there including Amazon Ashley, the midgets and the EDM band that plays at Beacher’s,” the party-goer told In Touch. “There were thousands of balloons, some of the characters actually wore sex toys, and there were tons of sex toys and blow-up dolls at the  party to go with the S&M theme!”

In addition to her pals from Beachers, the on-looker revealed that there were some famous faces there are as well; including Ke$ha, Niall Horan and Liam Payne from One Direction, Wiz Khalifa, Amber Rose and Calvin Harris among other stars. According to a partygoer, Miley—who wore a sexy black and white outfit—spent most of her time with Kelly Osbourne, who "seemed to be playing chaperone."

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Throughout the weekend, the birthday girl was spoiled with gifts and, according to observers, she kept talking about the personalized Can Am Spyder motorcycle that she received from her dad, Billy Ray Cyrus, as a present—but that wasn't her only big gift!

"Miley's cake was a life-size version of her, wearing a skimpy outfit with pot leaves all over it," a source added that there were also cardboard cutouts of Miley's face around the club. "When they present it to her, she screamed and giggled."

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Even though she was fresh off her AMA performance, onlookers said that Miley kept her energy going, until she and Kelly decided to leave the party around 2:30 AM -- and she received her final gift: an after party--hosted by Jeff Beacher, Miley's pal and the creator of the Hollywood hotspot--at his home!

"She's been celebrating her birthday with Beacher since she was 18," a source revealed. "So he's pulling out all the stops to give Miley the best birthday yet."