Miley Cyrus has turned 22 and celebrated her birthday in Los Angeles at the Factory Club with a wild party, where she danced topless, smeared herself with cake and rode a bucking bronco shaped like a penis, KBOI2 reported.

The singer posted pictures of her celebration over the weekend on her Instagram account, showing herself and a friend on top of a pink and penis-shaped bucking bronco and also showed off her pepperoni pizza-shaped birthday cake.

A video has also emerged online of a topless Cyrus while other pictures showed her and Flaming Lips singer Wayne Coyne getting smeared with cake, according to KBOI2.

The "Wrecking Ball" singer appeared to be channeling the 1990 film "Pretty Woman" as she was spotted in a one-piece tank top, miniskirt and showing off her stomach on her way to her party, according to Daily Mail.

Her party was reportedly decorated with marijuana leaves, balloon animals and sex toys in the form of phallic-shaped items and inflatable dolls. Some of the guests in attendance included Cyrus' brother, Baison; Adam Lambert; Cody Simpson; Gigi Hadid; and rumored boyfriend, Patrick Schwarzenegger.

Cyrus' partying ways will most likely not impress Schwarzenegger's family, however, as a source has said that Schwarzenegger's mother, Maria Shriver, disapproves of the relationship, according to Daily Mail.

"It is beyond true that Maria Shriver disapproves of the relationship that Patrick is starting with Miley," the source told Hollywood Life. "She is so controlling when it comes to the image of the family and this is eating her up inside."

The source also stated that Shriver and her husband, Arnold Schwarzenegger, were in disagreement.

Shriver "was getting some support from other family members as well, but she isn't getting the same support from Arnold because Arnold is happy with whatever Patrick gets himself into in the girls department."