I make mistakes growing up. I'm not perfect; I'm not a robot.

The Beliebers have done some pretty crazy stuff. Last week, the night before I was due to do a show in Germany, four girls went into a dumpster so they could sneak into the building. They climbed in and hid. When the guys working on the truck started getting the garbage they found them straight away. It was crazy.

I started singing about three years ago, I entered a local singing competition called Stratford Idol. The other people in the competition had been taking singing lessons and had vocal coaches. I wasn't taking it too seriously at the time, I would just sing around the house. I was only 12 and I got second place.

Not trying to be arrogant, but if I walked down the street and a girl saw me, she might take a look back because maybe I'm good-looking, right?