Britney Spears is mean and Demi Lovato is a brat:
With the new X Factor judges at his side on Monday, the reliably acerbic Cowell said that Spears is ``quite mean'' and Lovato is ``a brat''.
Demi Lovato is the latest celeb to admit that she got Punk'd on the reboot of the MTV show that Ashton Kutcher made popular a few years ago.