Bieber, 16, takes home four music awards

JUSTIN BIEBER scooped four trophies at his first American Music Awards.

The 16-year-old heartthrob captured every category in which he was nominated, including the top award of the night — favourite artist. He beat a list which featured veterans Eminem and Usher as well as Katy Perry and Lady Gaga.

Bieber became the youngest person ever to win the trophy.