From left, Niall Horan, Liam Payne, Louis Tomlinson, Harry Styles and Zayn Malik, of musical group One Direction, walk onstage to accept the best new artist award at the MTV Video Music Awards on Thursday, Sept. 6, 2012, in Los Angeles. (Photo by Mark J. Terrill/Invision/AP)

Rihanna performs at the MTV Video Music Awards on Thursday, Sept. 6, 2012, in Los Angeles. (Photo by Mark J. Terrill/Invision/AP)

Lil Wayne accepts the award for best hip-hop video for "Hyfr"at the MTV Video Music Awards on Thursday, Sept. 6, 2012, in Los Angeles. (Photo by Mark J. Terrill/Invision/AP)

Pink performs at the MTV Video Music Awards on Thursday, Sept. 6, 2012, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Katy Perry, left, presents the best pop video award to Niall Horan, of musical group One Direction, for "What Makes You Beautiful" at the MTV Video Music Awards on Thursday, Sept. 6, 2012, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Rihanna arrives at the MTV Video Music Awards on Thursday, Sept. 6, 2012, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

FILE - In this Oct. 27, 2008 file photo, FOX TV show host Bill O'Reilly arrives for a taping of the "Late Show with David Letterman," in New York. O'Reilly has signed on to write two more books, including a presidential biography.(AP Photo/Charles Sykes, file)

Pink, left, and Carey Hart arrive at the MTV Video Music Awards on Thursday, Sept. 6, 2012, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Singer Ne-Yo arrives at the MTV Video Music Awards on Thursday, Sept. 6, 2012, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Singer Tom Petty, center, arrives with his wife Dana, right, and his daughter Adria at the MTV Video Music Awards on Thursday, Sept. 6, 2012, in Los Angeles. (Photo by Jordan Strauss/Invision/AP)

FILE - This Aug. 14, 2012 file photoNicki Minaj performs on NBC's "Today" show on Tuesday, Aug. 14, 2012 in New York. Minaj is set to perform at the MTV Video Music Awards with a special guest on Thursday, Sept. 6. (Photo by Charles Sykes/Invision/AP)

Nicki Minaj arrives at the MTV Video Music Awards on Thursday, Sept. 6, 2012, in Los Angeles. (Photo by Jordan Strauss/Invision/AP)

Emma Watson arrives at the MTV Video Music Awards on Thursday, Sept. 6, 2012, in Los Angeles. (Photo by Jordan Strauss/Invision/AP)

Nicki Minaj arrives at the MTV Video Music Awards on Thursday, Sept. 6, 2012, in Los Angeles. (Photo by Jordan Strauss/Invision/AP)

Olympic gymnast Gabrielle Douglas attends the MTV Video Music Awards on Thursday, Sept. 6, 2012, in Los Angeles. (Photo by Jordan Strauss/Invision/AP)

Taylor Swift arrives at the MTV Video Music Awards on Thursday, Sept. 6, 2012, in Los Angeles. (Photo by Jordan Strauss/Invision/AP)

U.S. gymnasts, from left, McKayla Maroney, Jordyn Wieber, Kyla Ross, Gabrielle Douglas and Alexandra Raisman arrive at the MTV Video Music Awards on Thursday, Sept. 6, 2012, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Rihanna performs at the MTV Video Music Awards on Thursday, Sept. 6, 2012, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Rihanna performs in the audience at the MTV Video Music Awards on Thursday, Sept. 6, 2012, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Ezra Miller, left, and Emma Watson speak onstage at the MTV Video Music Awards on Thursday, Sept. 6, 2012, in Los Angeles. (Photo by Matt Sayles/Invision/AP)