Maria Shriver cancelled plans to attend Art Basel Miami when she was told that Miley Cyrus has also been invited.
Shriver was set to attend the event with her brother Anthony, but it seems she had a change of heart upon learning that her son’s girlfriend would also be there.
Cyrus has been dating Shriver and Arnold Schwarzenegger’s twenty one year old son Patrick, and it believed that Maria does not approve of the relationship.
A source told the New York Post’s Page Six column: "Maria was going to go to Art Basel to spend some time with Anthony, but when she heard Miley was going to be there with Patrick, she cancelled."
Maria became concerned after seeing photos of Miley on a bucking bronco shaped like a manhood at her 22nd birthday party last month.
The source continued: "The birthday party with all the penis pictures disgusted her. That was the worst thing Miley could have done.
"Maria is very, very worried about the influence Miley's having on Patrick. She fully believes that you become who you surround yourself with and she's always been so happy with the friends Patrick chooses, she never saw this coming."
Cyrus was a last minute booking at the Art Basel Miami event however, she soon became the person that everyone was talking about. The singer stripped down on stage and began dancing with a topless woman as well as a man dressed as a penis.
Cyrus was also seen smoking marijuana on stage, which is believed to have triggered an argument between the singer and Patrick.
The source went on: "Patrick is anti-drugs, but Miley doesn't give a f**k. She smoked marijuana onstage, and God knows what else she was on for the rest of the weekend.
"She and Patrick were heard fighting about it. There's no way Patrick can be linked to drug use; his family is American royalty."
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