Bieber, Swift, Minaj and Carly Rae Jepsen win AMAs

Swift won more awards, Bieber thanked his haters, Ke$ha and Usher sang during Sunday's American Music Awards.

Nathan Sykes of The Wanted performs at the 40th Annual American Music Awards on Sunday, Nov. 18, 2012, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Nathan Sykes of The Wanted performs at the 40th Annual American Music Awards on Sunday, Nov. 18, 2012, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

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