I do see a big difference in the American work ethic compared to the British work ethic in a lot of artists.

My dad wasn't someone who was a great disciplinarian, we had a fun relationship, but he gave me really constructive advice in my life, which I still carry today and I do pass on to other people. So if I can have the same relationship with my son as I had with my dad, then I think he'll be very happy and I'll be very happy.

I work out three or four times a week, I have Botox, take tons of vitamins and vitamin infusions - if you believe that these things work, you will feel better.

Talking to celebrities is too much effort. They all think the same.

We felt the time was right to open up the boundaries, and say to all of America, regardless of your age, whether you're 2, whether you're 100, regardless of what you believe your talent is - juggling, magic, singing - this is the show you can enter. It's as simple as that.

I love producing shows. And so when you're on a show where other people are making decisions you don't necessarily agree with it, after a while you start to feel like a passenger.

Most things in music go full circle eventually.