Prince supposedly humiliated socialite Paris Hilton in Vegas when he challenged her to sing live to prove that she can sing.

While Prince was performing at Las Vegas' Rio All Suite Hotel and Casino on April 21, he invited Paris to join him on stage.  Hilton evidently hurried up on stage to rub elbows with the musical icon, Prince handed her his microphone and said to the audience, "Let's see if she can really sing!"

US Weekly is reporting that Paris got angry and embarassed then stormed off stage and left the club only a few minutes later.

Paris' reps said "This item is false." Prince's people had no comment.