I hang out with a lot of older people, so I've matured a little bit, but I do still have my immature side.
Justin BieberI give up so much to do what I do. Like, I give up a personal life. I give up my friends, my family. I give up a lot of stuff to pursue what I love and to make my fans happy. I give up so much. So, I'm going to be the best.
Justin Bieber