Demi Lovato’s Minty “X Factor” Moment

Posted Monday September 10, 2012 8:43 PM GMT

This season’s “X Factor” judges’ panel is going to be all kinds of fun, with Demi Lovato and Britney Spears joining LA Reid and Simon Cowell.

And during a recent promo clip, the “Skyscraper” singer pulled a funny prank on Cowell during one contestant’s audition.

When asked to weigh in on a singer, Demi chuckled before admitting, “I have like 12 mints in my mouth.”

And when Simon criticized her antics, Lovato spit the mints into his hand, prompting him to respond, “Really, really grown up Demi… obnoxious little brat.”

Related Photos