Even if she was working on her birthday because of the American Music Awards 2013, it still did not hinder Miley Cyrus from celebrating her 21^st birthday. Her original birthday is November 23 but because of the required rehearsals for the awards night, Cyrus decided to have her bash after the event on Sunday.

After her 'Wrecking Ball' performance, she changed from her kitty outfit to a black bandeau top paired with a pair of black shorts. She headed straight to the Beacher's Madhouse in Los Angeles, California wherein her friends were already waiting.

The party had strippers and some of them imitated the 'Hannah Montana' star's "twerking" dance. A couple even went to the party dressed as Cyrus in latex bikini and Robin Thicke. Face masks resembling the 'So Undercover' star's appearance were likewise abundant during the party.

Her birthday bash had a cake resembling the pop star's figure but her private parts have been covered with pot leaves.

"Miley is friends with club owner Jeff Beacher and basically anything she wanted on the night, she got," claims an insider to The Sun.

Notable party guests include Emma Roberts, Amber Rose, Cherie Daly, Kelly Osbourne, and One Direction's Niall Horan and Liam Payne. However, missing from the party is the celebrant's former beau Liam Hemsworth who appeared to have turned down her invitation.

Nonetheless, according to a report by Hollywood Life, the 'Hunger Games' actor made an effort to greet his former fiancée: "The recent contact he has had with her was to wish her Happy Birthday but that is about it."

Despite their break-up a few months ago, Cyrus appears to be concentrating on her career: "I want to be really clear and determined with everything I'm doing in my life right now. I am genuinely happy, finally with myself."

Apart from the $25,000-worth ATV bike she got from her dad Billy Ray Cyrus, it was unknown whether Hemsworth gave her a present.