Simon Cowell has insisted that American Idol judge Kara DioGuardi will be back to for another season of American Idol.

“I think certainly next year everyone’s going to be back,” he told Ellen Degeneres on her talk show.

Last week Kara said that she was probably going to stick to one season only, who knows what to believe.

Simon also admitted that having foru judges on the show can often restrict the time they get to critique the singers.

“There’s less time for us to talk,” he said.

“One week literally we couldn’t talk, so ten minutes before the show started they said, ‘Oh by the way you can’t talk for half the show’.

“It’s rather like saying in a singing competition to the singers, half of you can’t sing. It was just crazy.”