I maintain that when I finally retire from my career in music, I will go and live back in Wales - when I am an old person, if I live to be an old person. The water I miss, and the air, there's something different about it. And I miss the simple life.

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

I'm quite private. And I never wanted to be the biggest star in the world really. So in that sense I've got a good balance of doing great shows, of making an appearance every now and then and writing music, and I don't really have to do much else.

Gwen Stefani has amazing style. I used to really love Courtney Love, and anything she wore I loved. Or Chloe Sevigny, because I really love that sort of classic look, and I like being girly and flowery, and wearing little D&G dresses. I wear hats a lot, too. I think it goes back to when I was a bit grungy and was a skater girl for a bit.

Cover versions, that's my forte, that's all I ever used to do. When you play your own songs, it's quite scary, 'cause I'm quite honest and open, they can be very revealing. But covers, I don't have to think about, just get me up there!

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.

You should constantly write because your writing is always evolving and progressing. It's really important to start writing young.