I can't eat before I go onstage because I've learnt that burping on stage isn't a good thing. It's all about acid reflux.

I dress in a sophisticated and classy way - I always dress in a way I know my mother wouldn't be embarrassed to see.

I feel like I've got far more gay fans in America... Maybe they caught wind that I have a cute Jewish brother who's gay.

American fans want to meet you, and they wait for that autograph by the stage door. In the UK, it doesn't really happen that much.

I've become one of those annoying people who brings their own food on to planes.

I always have to pretend I'm somebody else to give the best performance. It kind of feels like I'm acting; it's definitely an exaggerated version of me. I'm a very normal, down-to-earth person, but I wanted the videos to be striking, so I have to lay it on a little bit.

I started meeting the right people, like [producer] Dave [Okumu], who explained to me how songwriting is really simple - "just like shitting," he said. "You gotta let it all out." When he put it like that, however disgusting it is, it made a lot of sense to me.