Justin Bieber AMA Awards

Justin Bieber AMA Awards: Justin Bieber was the top winner at Sunday night's American Music Awards, capturing four trophies including favourite artist.

The 16-year-old teen heartthrob captured every award he was nominated for, beating a list that featured veterans Eminem and Usher as well as Katy Perry and Lady Gaga.

Bieber became the youngest person to ever win the trophy. Bieber also won favourite pop/rock album, favorite pop/rock male, and the show's breakthrough artist award.