I couldn't think of anything worse than being in an unhappy marriage. It worries me because I've seen it destroy people.

There's one argument that says we shouldn't be putting these kids on under the age of 16. I think you've got to take it case by case.

Everyone who turns up on 'X Factor' does it because a door has been closed to them at some time in their lives, and this is the only shot they have got.

What I would argue in my defence is that shows like Britain's Got Talent and The X Factor have actually got people more interested in music again and are sending more people into record stores.

You have to be original. The people creating a buzz on YouTube are taking risks, and they're doing something different. I like it when 15 year-olds come on and tell me what to do rather than the other way around.

Have I got a black book? Yes, it's called a mobile phone. I do get offers. There is no shortage of people if you want to go on dates - working in TV, living in L.A., it is there if you want it.

When I think of invention, I always think of America. You're always seeing ads: 'Have you got the next big idea?' There seems to be that spirit in America of inventions and inventors.