"Simon thinks Will and Cheryl will be a brilliant formula. He's one of the biggest names in America, and considered to be a talented musician as well as actor," the Herald Sun quoted a source as telling the Sunday Mirror. "Simon is desperate to make the US X Factor the biggest show in the world. It is a completely new challenge and he is genuinely excited by it," added the source.
'The X Factor" is due to premiere in the US in September.