Britney Spears' appearance on US X Factor must be one of the most hotly anticipated judging roles we've ever seen.
[Related article: Simon Cowell calls Demi Lovato a brat]
[Related article: Britney Spears in LBD at X Factor auditions]
Seeing as this comment has come from the king of mean himself, we're now fully expecting Britney to be the harshest judge the X Factor has ever seen.
Simon revealed: "Britney's quite mean, as you'll discover."
He went on to explain why he'd chosen her as a judge in the first place: "I was fascinated with her as a person, as a pop star, and there's something intriguing about her. And she's a really good judge."
Simon Cowell also called Demi Lovato a 'brat'. Copyright [WENN]Simon Cowell hasn't just dished the dirt on Britney Spears this week, but he also jokingly slated the other US X Factor judge, Demi Lovato.
He said: "She's annoying, obnoxious, disruptive, gobby, irritating, bad manners, not great taste — did I say irritating? Annoying, very annoying. She's a brat."
At this point we were wondering what the heck Simon was thinking hiring 'mean' Britney and 'bratty' Demi, but he went on to compliment Demi.
He said: "I could go on for hours, but that's what makes her special, and I really do love her, a bit."
We can't wait to see either judge on the new series.