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

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.

I've had Botox, but then again pretty much everyone I know has. To me, Botox is no more unusual than toothpaste. It works. You do it once a year - who cares?

The secret of my success is that I make other people money. And, never, ever, be ashamed about trying to earn as much as possible for yourself, if the person you're working with is also making money. That's life!

They understand what their market is and who they should be selling records to, and most importantly, they know the kind of artist that they want to be, but they have to do it themselves. You don't want a 13-year-old singing some awful song from a musical.

I could just sit back and get someone to spin my achievements, I suppose, but when I see others do it, I always think, 'Why are you telling me how successful you are?' I am always suspicious of those kinds of boasts.

If you only ever heard Lady Gaga, she's the most boring singer in the world.