I became famous so quickly and so young – it was daunting. I was immature and I used to say some really stupid things in interviews. I never smiled on stage so I looked really serious but it was because I hated my teeth and was incredibly nervous.
There's the famous thing that the A&R man from the record company is supposed to do: He's supposed to come into the studio and listen to the songs you've been recording and then say 'Guys I don't hear any singles.' And then everybody falls into a terrible depression because you have to write one.