Justin Bieber accepts the award for favorite album - pop/rock for 'Believe' at the 40th Anniversary American Music Awards on Sunday, Nov. 18, 2012, in Los Angeles. (Photo by John Shearer/Invision/AP)
Stevie Wonder and the Rickey Minor Band perform "Master Blaster," "My Cherie Amour" and "Sir Duke" during a tribute to Dick Clark at the 40th Anniversary American Music Awards in Los Angeles on Nov. 18, 2012. (John Shearer/Invision/Associated Press)
Stevie Wonder and the Rickey Minor Band perform "Master Blaster," "My Cherie Amour" and "Sir Duke" during a tribute to Dick Clark as an image of Clark with Britney Spears and LL Cool J is displayed at the 40th Anniversary American Music Awards in Los Angeles on Nov. 18, 2012. (John Shearer/Invision/Associated Press)
Usher performs at the 40th Annual American Music Awards in Los Angeles on Nov. 18, 2012. (John Shearer/Invision/Associated Press)
Stevie Wonder and the Rickey Minor Band perform "Master Blaster," "My Cherie Amour" and "Sir Duke" during a tribute to Dick Clark at the 40th Anniversary American Music Awards in Los Angeles on Nov. 18, 2012. (John Shearer/Invision/Associated Press)
Stevie Wonder and the Rickey Minor Band perform "Master Blaster," "My Cherie Amour" and "Sir Duke" during a tribute to Dick Clark at the 40th Anniversary American Music Awards in Los Angeles on Nov. 18, 2012. (John Shearer/Invision/Associated Press)
Justin Bieber accepts the award for favorite male artist - pop/rock at the 40th Annual American Music Awards on Sunday Nov. 18, 2012, in Los Angeles. (Photo by John Shearer/Invision/AP)
50 Cent arrives at the 40th Anniversary American Music Awards on Sunday, Nov. 18, 2012, in Los Angeles. (Photo by John Shearer/Invision/AP)
Chris Brown arrives at the 40th Anniversary American Music Awards on Sunday, Nov. 18, 2012, in Los Angeles. (Photo by John Shearer/Invision/AP)
