The news:

Britney Spears and Demi Lovato to judge X Factor USA

Britney Spears and Demi Lovato have signed up as judges for the US version of the X Factor.

The singers will join Simon Cowell and L.A. Reid on the judging panel when the show returns in the autumn.Fox confirmed earlier this year that Paula Abdul and Nicole Scherzinger would not be returningSpeaking as the new judges were presented in New York, he said: "We're going to make this the best series we've ever made.