American Music Awards '10

Katy Perry performs at the 38th Annual American Music Awards on Sunday, Nov. 21, 2010 in Los Angeles. (AP/Matt Sayles)

Singer Katy Perry performs 'Firework' at the 2010 American Music Awards in Los Angeles November 21, 2010. (REUTERS/Mario Anzuoni)

Fergie of The Black Eyed Peas performs 'The Time' at the 2010 American Music Awards in Los Angeles November 21, 2010. (REUTERS/Mario Anzuoni)

Rihanna performs a medley of 'Love the Way You Lie', 'What's My Name' and 'Only Girl in the World' at the 2010 American Music Awards in Los Angeles November 21, 2010. (REUTERS/Mario Anzuoni)

Katy Perry performs at the 38th Annual American Music Awards on Sunday, Nov. 21, 2010 in Los Angeles. (AP/Matt Sayles)

Karina Smirnoff arrives at the 38th Annual American Music Awards in Los Angeles. (AP/Chris Pizzello)

Pitbull (L) and Enrique Iglesias perform 'I Like It' at the 2010 American Music Awards in Los Angeles November 21, 2010. (REUTERS/Mario Anzuoni)

Justin Bieber performs at the 38th Annual American Music Awards on Sunday, Nov. 21, 2010 in Los Angeles. (AP/Matt Sayles)

Actress Julianne Hough arrives on the red carpet of the 2010 American Music Awards at the Nokia Theatre in Los Angeles on November 21, 2010. (AFP/Mark Ralston)

Rihanna performs at the 38th Annual American Music Awards on Sunday, November 21, 2010 in Los Angeles. (AP/Matt Sayles)

Members of Backstreet Boys and New Kids on the Block arrive at the 38th Annual American Music Awards in Los Angeles. (AP/Mario Anzuoni)

Rihanna performs at the 38th Annual American Music Awards on Sunday, November 21, 2010 in Los Angeles. (AP/Matt Sayles)

Singer Katy Perry performs 'Firework' at the 2010 American Music Awards in Los Angeles November 21, 2010. (REUTERS/Mario Anzuoni)

John Legend, left, and Jenny McCarthy present the favorite band, duo or group award at the 38th Annual American Music Awards in Los Angeles. (AP/Matt Sayles)

Actor Samuel L Jackson poses in the press room at the 38th Annual American Music Awards in Los Angeles on November 21, 2010. (AFP/Robyn Beck)

Willow Smith, Jada PInkett Smith, and Jaden Smith arrive at the 38th Annual American Music Awards on Sunday, Nov. 21, 2010 in Los Angeles. (AP/Chris Pizzello)

Host Heidi Klum presides over the 2010 American Music Awards in Los Angeles November 21, 2010. (REUTERS/Mario Anzuoni)

Miley Cyrus performs at the 38th Annual American Music Awards on Sunday, Nov. 21, 2010 in Los Angeles. (AP/Matt Sayles)

Usher kisses presenter Heidi Klum after he won Favorite R&B Soul album for 'Raymond vs Raymond' at the 2010 American Music Awards in Los Angeles November 21, 2010. (REUTERS/Mario Anzuoni)

Taylor Swift accepts the award for country favorite female artist at the 38th Annual American Music Awards in Los Angeles. (AP/Matt Sayles)

Nicki Minaj arrives at the 38th Annual American Music Awards in Los Angeles. (AP/Chris Pizzello)

Mike Sorrentino, also known as 'The Situation', arrives at the 38th Annual American Music Awards in Los Angeles. (AP/Chris Pizzello)

Katy Perry performs at the 38th Annual American Music Awards in Los Angeles. (AP/Matt Sayles)

Julie Benz arrives at the 38th Annual American Music Awards 2010 in Los Angeles. (AP/Chris Pizzello)

Singer Natasha Bedingfield arrives at the 2010 American Music Awards in Los Angeles November 21, 2010. (REUTERS/Danny Moloshok)

Katy Perry performs at the 38th Annual American Music Awards on Sunday, Nov. 21, 2010 in Los Angeles. (AP/Matt Sayles)

Nathan Fillion, left, and a guest arrive at the 38th Annual American Music Awards on Sunday, Nov. 21, 2010 in Los Angeles. (AP/Chris Pizzello)

Singer Rihanna accepts the award for Favorite R&B Female Artist from presenters Nicki Minaj (L) and Trey Songz at the 2010 American Music Awards in Los Angeles November 21, 2010. (REUTERS/Mario Anzuoni)

Rihanna accepts the award for soul R&B favorite female artist at the 38th Annual American Music Awards in Los Angeles. (AP/Matt Sayles)

Mandy Moore, right, presents Brad Paisley with the award for country favorite male artist at the 38th Annual American Music Awards in Los Angeles. (AP/Matt Sayles)

Bon Jovi performs at the 38th Annual American Music Awards on Sunday, Nov. 21, 2010 in Los Angeles. (AP/Matt Sayles)

Singer Katy Perry performs 'Firework' at the 2010 American Music Awards in Los Angeles November 21, 2010. (REUTERS/Mario Anzuoni)

Rihanna performs at the 2010 American Music Awards in Los Angeles November 21, 2010. (REUTERS/Mario Anzuoni)

Pink performs at the 38th Annual American Music Awards in Los Angeles. (AP/Matt Sayles)

Singer Taylor Swift performs at the 2010 American Music Awards in Los Angeles November 21, 2010. (REUTERS/Mario Anzuoni)

Natasha Bedingfield poses backstage at the 38th Annual American Music Awards in Los Angeles. (AP/Chris Pizzello)

Singer Pink performs 'Raise Your Glass' at the 2010 American Music Awards in Los Angeles November 21, 2010. (REUTERS/Mario Anzuoni)

Neyo performs at the 38th Annual American Music Awards in Los Angeles. (AP/Matt Sayles)

Neyo performs at the 38th Annual American Music Awards in Los Angeles. (AP/Matt Sayles)

The Black Eyed Peas, Apl.de.ap, Fergie, Taboo, and Will.i.am pose backstage at the 38th Annual American Music Awards in Los Angeles. (AP/Chris Pizzello)

Rihanna performs at the 38th Annual American Music Awards on Sunday, Nov. 21, 2010 in Los Angeles. (AP/Matt Sayles)

Christina Aguilera, left, performs at the 38th Annual American Music Awards on Sunday, Nov. 21, 2010 in Los Angeles. (AP/Matt Sayles)

Christina Aguilera performs at the 38th Annual American Music Awards on Sunday, Nov. 21, 2010 in Los Angeles. (AP/Matt Sayles)

Lady Antebellum members (L-R) Charles Kelley, Hillary Scott and Dave Haywood accept the Favorite Country Music Band, Duo or Group award at the 2010 American Music Awards in Los Angeles November 21, 2010. (REUTERS/Mario Anzuoni)

The band Muse, Christopher Wolstenholme, Matthew Bellamy, and Dominic Howard pose with their awards for alternative rock music favorite artist backstage at the 38th Annual American Music Awards 2010 in Los Angeles. (AP/Chris Pizzello)

Singer Christina Aguilera performs 'Express' at the 2010 American Music Awards in Los Angeles November 21, 2010. (REUTERS/Mario Anzuoni)

Actor Jaden Smith, son of actor Will Smith, arrives at the 2010 American Music Awards in Los Angeles November 21, 2010. (REUTERS/Danny Moloshok)

Usher performs at the 38th Annual American Music Awards in Los Angeles. (AP/Matt Sayles)

Singer Ne-Yo (C) performs a medley at the 2010 American Music Awards in Los Angeles November 21, 2010. (REUTERS/Mario Anzuoni)

Musician Taylor Swift arrives on the red carpet of the 2010 American Music Awards at the Nokia Theatre in Los Angeles on November 21, 2010. (AFP/Mark Ralston)

Ke$ha performs at the 38th Annual American Music Awards in Los Angeles. (AP/Matt Sayles)

Ke$ha performs at the 38th Annual American Music Awards in Los Angeles. (AP/Matt Sayles)

Mike Posner and Avril Lavigne present an award at the 38th Annual American Music Awards in Los Angeles. (AP/Matt Sayles)

Christina Aguilera performs 'Express' at the 2010 American Music Awards in Los Angeles November 21, 2010. (REUTERS/Mario Anzuoni)

The Band Perry, from left, Neil Perry, Kimberly Perry, and Reid Perry present the award for adult contemporary music favorite artist at the 38th Annual American Music Awards in Los Angeles. (AP/Matt Sayles)

Presenters Rico Rodriguez II (L) and Eric Stonestreet from the Modern Family TV series speak onstage at the 2010 American Music Awards in Los Angeles November 21, 2010. (REUTERS/Mario Anzuoni)

Michael Buble accepts the award for adult contemporary music favorite artist at the 38th Annual American Music Awards on Sunday, Nov. 21, 2010 in Los Angeles. (AP/Matt Sayles)

Santana performs at the 38th Annual American Music Awards in Los Angeles. (AP/Matt Sayles)

Members of the group Muse pose in the photo room after winning the award for Alternative Rock Music - Favorite Artist at the 2010 American Music Awards in Los Angeles November 21, 2010. (REUTERS/Danny Moloshok)

Singer Pink (L) and Carey Hart arrive on the red carpet for the 2010 American Music Awards at the Nokia Theatre in Los Angeles on November 21, 2010. (AFP/Mark Ralston)

Christina Aguilera performs 'Express' at the 2010 American Music Awards in Los Angeles November 21, 2010 (REUTERS/Mario Anzuoni)

Singer Christina Aguilera (C) performs 'Express' at the 2010 American Music Awards in Los Angeles November 21, 2010. (REUTERS/Mario Anzuoni)

Singer Christina Aguilera performs 'Express' at the 2010 American Music Awards in Los Angeles November 21, 2010. (REUTERS/Mario Anzuoni)

Christina Aguilera performs 'Express' at the 2010 American Music Awards in Los Angeles November 21, 2010. (REUTERS/Mario Anzuoni)

Johnny Weir, left, and Christina Milian are seen on stage at the 38th Annual American Music Awards in Los Angeles. (AP/Matt Sayles)

Singer Christina Aguilera performs 'Express' at the 2010 American Music Awards in Los Angeles November 21, 2010 (REUTERS/Mario Anzuoni)

Lady Antebellum, from left, Charles Kelley, Hillary Scott and Dave Haywood present the award for soul R&B favorite male artist at the 38th Annual American Music Awards in Los Angeles. (AP/Matt Sayles)

Singer Ke$ha arrives on the red carpet for the 2010 American Music Awards at the Nokia Theatre in Los Angeles on November 21, 2010. (AFP/Mark Ralston)

Ke$ha performs a medley at the 2010 American Music Awards in Los Angeles November 21, 2010. (REUTERS/Mario Anzuoni)

Carlos Santana (R) and Gavin Rossdale perform 'Bang a Gong' at the 2010 American Music Awards in Los Angeles November 21, 2010. (REUTERS/Mario Anzuoni)

New Kids On The Block, left, and Backstreet Boys perform at the 38th Annual American Music Awards in Los Angeles. (AP/Matt Sayles)

Usher,left, congratulates Justin Bieber for winning the award for artist of the year at the 38th Annual American Music Awards in Los Angeles. (AP/Matt Sayles)

Singer Katy Perry arrives on the red carpet for the 2010 American Music Awards at the Nokia Theatre in Los Angeles on November 21, 2010. (AFP/Mark Ralston)

Ke$ha performs a medley at the 2010 American Music Awards in Los Angeles November 21, 2010. (REUTERS/Mario Anzuoni)

Jordan Knight, of New Kids on the Block, performs at the 38th Annual American Music Awards in Los Angeles. (AP/Matt Sayles)

Justin Bieber accepts the Artist of the Year Award from Ryan Seacrest (R) at the 2010 American Music Awards in Los Angeles November 21, 2010. (REUTERS/Mario Anzuoni)

Singer Katy Perry arrives on the red carpet for the 2010 American Music Awards at the Nokia Theatre in Los Angeles on November 21, 2010. (AFP/Mark Ralston)

Singer Katy Perry arrives on the red carpet for the 2010 American Music Awards at the Nokia Theatre in Los Angeles on November 21, 2010. (AFP/Mark Ralston)

Ke$ha smashes a guitar as she performs a medley at the 2010 American Music Awards in Los Angeles November 21, 2010. (REUTERS/Mario Anzuoni)

Singers Carlos Santana (L) and Gavin Rossdale perform 'Bang a Gong' at the 2010 American Music Awards in Los Angeles November 21, 2010. (REUTERS/Mario Anzuoni)

Usher holds his awards backstage at the 38th Annual American Music Awards 2010 in Los Angeles. (AP/Chris Pizzello)

Ke$ha performs a medley at the 2010 American Music Awards in Los Angeles November 21, 2010. (REUTERS/Mario Anzuoni)

Justin Beiber holds his four trophies, including favorite artist, in the press room at the 38th Annual American Music Awards in Los Angeles on November 21, 2010. (AFP/Robyn Beck)

Justin Beiber (R) and Usher (L) pose in the press room at the 38th Annual American Music Awards in Los Angeles on November 21, 2010. (AFP/Robyn Beck)

Singer Justin Bieber hugs Usher after Bieber won the award for Artist of the Year and called Usher up onto the stage at the 2010 American Music Awards in Los Angeles November 21, 2010. (REUTERS/Mario Anzuoni)

Country music star Brad Paisley holds his award for Favorite Male Country Music Artist in the press room at the 38th Annual American Music Awards in Los Angeles on November 21, 2010. (AFP/Robyn Beck)

Members of the Backstreet Boys perform a medley at the 2010 American Music Awards in Los Angeles November 21, 2010. (REUTERS/Mario Anzuoni)

Fergie of the Black Eyed Peas poses in the press room at the 38th Annual American Music Awards in Los Angeles on November 21, 2010. (AFP/Robyn Beck)

Justin Bieber (R) and Usher (L) pose with their awards in the press room at the 38th Annual American Music Awards in Los Angeles on November 21, 2010. Bieber won four awards and Usher won two. (AFP/Robyn Beck)

Carlos Santana performs 'Bang a Gong' at the 2010 American Music Awards in Los Angeles November 21, 2010. (REUTERS/Mario Anzuoni)

Singer Taylor Swift poses in the photo room with her award for Favorite Country Female Artist at the 2010 American Music Awards in Los Angeles November 21, 2010. (REUTERS/Danny Moloshok)

Singer Sheryl Crow arrives on the red carpet of the 2010 American Music Awards at the Nokia Theatre in Los Angeles on November 21, 2010. (AFP/Mark Ralston)

Actress Jessica Alba poses in the press room at the 38th Annual American Music Awards in Los Angeles on November 21, 2010 (AFP/Robyn Beck)

Actress Julianne Hough arrives on the red carpet of the 2010 American Music Awards at the Nokia Theatre in Los Angeles on November 21, 2010. (AFP/Mark Ralston)

Actress Julianne Hough arrives on the red carpet of the 2010 American Music Awards at the Nokia Theatre in Los Angeles on November 21, 2010. (AFP/Mark Ralston)

Singer and actress Jennette McCurdy from the 'iCarly' show arrives at the 2010 American Music Awards in Los Angeles November 21, 2010. (REUTERS/Danny Moloshok)

Singer and actress Kelly Osbourne arrives at the 2010 American Music Awards in Los Angeles November 21, 2010. (REUTERS/Danny Moloshok)

Actress Julie Benz arrives at the 2010 American Music Awards in Los Angeles November 21, 2010 (REUTERS/Danny Moloshok)

Stana Katic, left, and Nathan Fillion are seen on stage at the 38th Annual American Music Awards in Los Angeles. (AP/Matt Sayles)

Actress Willow Smith arrives on the red carpet for the 2010 American Music Awards at the Nokia Theatre in Los Angeles on November 21, 2010. (AFP/Mark Ralston)

Actress Jessica Alba poses in the press room at the 38th Annual American Music Awards in Los Angeles on November 21, 2010. (AFP/Robyn Beck)

Actress Jessica Alba poses in the press room at the 38th Annual American Music Awards in Los Angeles on November 21, 2010. (AFP/Robyn Beck)

Actress Christina Milian poses in the press room at the 38th Annual American Music Awards in Los Angeles on November 21, 2010. AFP PHOTO / Robyn Beck (/)

Actress Christina Milian poses in the press room at the 38th Annual American Music Awards in Los Angeles on November 21, 2010. AFP PHOTO / Robyn Beck (/)

Actress Jenny McCarthy arrives on the red carpet for the 2010 American Music Awards at the Nokia Theatre in Los Angeles on November 21, 2010. AFP PHOTO/Mark RALSTON (/)