I would never create an image for myself; I'm not that clever.

When I sing along with Britney Spears I will sing in an American accent. But eventually I found my own voice. My songs are so brutally honest, it would be alien to sing in any accent other than my own. Don't get me wrong - I can imitate singers. I can do bar mitzvahs and weddings.

There are plenty of bands who never get in the charts and it doesn't mean that they're not any good. Actually, a lot of the top ten is filled with stuff that just sounds the same. I could guess what's in there now - probably a bit of GaGa, Beyonce and some U.S. R&B males.

Mumford & Sons' music appeals to a lot of America. I'm really proud of them.

I feel like sometimes I'm so positive and sometimes I think the worst of everything or I think the worst is going to happen. It's how I deal with stuff day-to-day, it's just how I get by really, and it's probably not the best way to be.

I wrote 'Lights' a long, long time ago. And I expected it to be on the album, because it was - I wrote it with 'Biff' Stannard. And he wrote every single Spice Girls song and every single pop song of the 90s, basically. So I thought, you know, I was really lucky to work with him, but I didn't think it would be a big song for some reason.

I don't really have a style icon but I really admire the way people dress like Gaga, Rihanna and Gwen Stefani. It's good to be inspired by singers who write music and dress incredibly - rather than models and people in the fashion industry who dress immaculately anyway because it's their style.