Writer Tom Bower who penned the biography Sweet Revenge: The Intimate Life of Simon Cowell has confirmed that a sequel is already in the works.

Speaking to ITV’s This Morning Bower explained that despite recent "embarrassing" revelations, the pair still "remain friends."

He said: "The first call was 'you are getting a lot of publicity for your book'. He said 'it's a bit embarrassing, you got things I didn't know you'd got'. But we get on very well. Finally he said to me last night, 'we remain friends'."

Bower stated that he was contacted "out of the blue" by the X-Factor judge when he heard he was working on a book about him and agreed to cooperate.

He said: "It was a very, very interesting journey. There is a man who's actually very private in his life although he doesn't seem it. He keeps his secrets pretty well.

"I flew with him a lot to America on his private jet, I was on his yacht, visited him often in his house in LA. I got to know him very well and we got on very well. In the end I reported what I found."

When asked if there would be enough material for a second book he said: "Oh yes, there will be a sequel. He'll be with us for a long time I think."