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.

I was slightly cynical of the American mentality before I came over here, but now I preach it. Here, no one's going to tear you down if you buy yourself a $300,000 car. They're likely to say: "Well, you probably worked hard for it. Good luck to you."

The young people working for me are ambitious and hard-working. That work ethic has always been a trait of the British.

The minute you start assuming that the audience is very happy to see the same show again, you're dead.

That was extraordinary. Unfortunately, extraordinarily bad.

When someone asks, 'Does success make you into a monster?' I always say, 'No, it enables you to be a monster.'

I thought the first two seasons of America's Got Talent were good. I think this one is the best one by a mile because they - you see the difference this year, I think, with the crowd being effectively the fourth judge. But most importantly, I think that these shows have to have a relevance because if you're not finding stars at the back of these shows - whether it's Idol or Got Talent - they're a complete waste of time.