Justin Bieber was the big winner at the American Music Awards in Los Angeles, November 18, where he took the prize for Artist of the Year.
American Music Awards 2012
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MC Hammer, left, dances as PSY performs “Gangnam Style” at the 40th Anniversary American Music Awards on Nov. 18, 2012, in Los Angeles.
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Carrie Underwood performs at the 40th Anniversary American Music Awards on Nov. 18, 2012, in Los Angeles.
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Lady Antebellum accepts the award for favorite band, duo or group - country at the 40th Anniversary American Music Awards on Nov. 18, 2012
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Christina Aguilera, left, and Pitbull perform at the 40th Anniversary American Music Awards on Nov. 18, 2012, in Los Angeles.