I don't want to tell a 15 or 14 year old what they should be doing. I want them to tell me. And that's what I got when I met Justin Bieber for the first time.

Anything I shouldn't laugh at makes me laugh. I mean, I'm bad at that, when somebody is singing something terribly and I'm thinking to myself, 'If I laugh now, this is the absolute worst thing I could ever do,' and then I start laughing and I can't stop.

Music should always be polarizing. What one person likes, somebody else hates. And I hate that kind of snobbery in pop music. The fact that so many people are getting upset over this one song is hysterical. And if people like it, that's great.

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.

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."

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

I don't mind competition at all. I mean, the record business is the most competitive business in the world, probably. So I'm used to that. In a weird way, it kind of makes you work harder.