I have very good advice to give to kids this age, which is, you shouldn't listen to your mum or dad and you just have to work it out for yourself. And the reason I've taken the age range down this year, and I never would have done it 10 years ago, is what I've seen with the success of Willow Smith. You don't have to be so cutesy anymore.

I like to know why a video has suddenly gone viral, why a song has broken, why a TV show is suddenly rating out of pattern... I'm pretty good at understanding why things are becoming popular.

I think America is a hard nut to crack. But once you get a toehold, it's a great place for an entrepreneur because people are so enthusiastic, and you have the most enthusiastic audiences in world.

The only people with power today are the audience. And that is increasing with Twitter, Facebook, and everything else. We cater to their likes and dislikes, and you ignore that at your peril.

I've never liked the idea you have to be a certain age to be a pop star. I like the idea that anybody can enter, anybody can compete.

What luxury would I take to a desert island? A mirror. It's true. I'd miss me.

Praise a stranger with a few nice words and he becomes a stranger that calls you a friend.