Justin Bieber has thousands of screaming fans, but Cher isn't one of them.

While Cher looked like a total rockstar while attending a private swag bag party over the weekend in Brentwood, she acted more like a diva while meeting the "Baby" singer.

A source told the New York Daily News that Cher was chatting with Bridesmaids star Melissa McCarthy recently about her run-ins with Justin and Jaden Smith.

Turns out the first time Cher ran into Justin, she asked someone nearby "if he was in show business." Ouch! But in the same conversation, she happily told McCarthy that she took "a picture with Jada's son." Even funnier? The teens are BFFs.

Sorry, Justin - bragging rights go to Jaden!