Rita Ora

I don't know how 'X Factor' works. I was only there as a guest judge for a day. But I watched 'The Voice' a lot; I respected how it came across on TV, and I love the freedom we get as coaches to do what we want.

When I have a creative insight, there is a high. I think back in the day, I made music as much as I did because it made me feel so good. I think you could argue that there is a creative addiction - but, you know, the healthy kind.

If you're in pop music, you've got to deal with the changing of the guard every few years. By the time the '70s arrived, I was well aware of the cyclical nature of the game. Pop music is a creature of the moment; it thrives on the mood of its time. Either you hook into that or you're not going to be part of it.