The hotel heiress was in the audience at Prince's Club 3121 show at the Rio Hotel & Casino in Las Vegas, and Prince invited her onstage.

When, according to Us, she skipped up to take her place in the spotlight, Prince handed her a mic and called out to the crowd, "Let's see if she can really sing," a challenge that so dismayed Paris that she ended up ditching the stage and leaving just two songs later. Paris' rep denies the incident. - more on this story