It took time to really build myself a reputation as a good live performer, a musician and an artist.

I got approached by SoBe a few months ago about being an ambassador and I learned about the previous ones including Naomi Campbell, so I was instantly interested! Then I tried and really liked it. It's different and has interesting flavours... we don't have anything like it in the U.K.

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.

If a hundred people want autographs, sometimes you have to say no because you've got to get up for a 4 A.M. flight or something. In that sense, it really pisses me off when people think you've become a diva. It's not becoming a diva, it's because of the situation, I think.

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.

The nature of how we are as human beings is that we're much more interested in being critical rather than praising something.

I was super brainy and a proper geek at school, but there would always be a boy. But that sort of obsession did turn me into a songwriter. My writing has always come from that feeling of infatuation.