Fans cheer outside the MTV Video Music Awards on September 6, in Los Angeles. (Photo by Jordan Strauss/Invision/AP)

Singer Tom Petty, center, arrives with his wife Dana, right, and his daughter Adria at the MTV Video Music Awards (Photo by Jordan Strauss/Invision/AP)

Actress Zoe Saldana arrives at the MTV Video Music Awards (Photo by Jordan Strauss/Invision/AP)

Alicia Keys attends the MTV Video Music Awards (Photo by Jordan Strauss/Invision/AP)

Miley Cyrus and her sister Brandi Cyrus attend the MTV Video Music Awards (Photo by Jordan Strauss/Invision/AP)

Demi Lovato performs before the MTV Video Music Awards (Photo by Matt Sayles/Invision/AP)

Colton Haynes arrives at the MTV Video Music Awards (Photo by Matt Sayles/Invision/AP)

Lil Wayne, right, and 2 Chainz perform at the MTV Video Music Awards (Photo by Mark J. Terrill/Invision/AP)

Pink performs at the MTV Video Music Awards (Photo by Matt Sayles/Invision/AP)

Frank Ocean performs at the MTV Video Music Awards (Photo by Mark J. Terrill/Invision/AP)

Billie Joe Armstrong of musical group Green Day performs at the MTV Video Music Awards (Photo by Mark J. Terrill/Invision/AP)

Taylor Swift surfs the crowd at the MTV Video Music Awards (Photo by Mark J. Terrill/Invision/AP)

Members of the British band One Direction, from left, Niall Horan, Louis Tomlinson, Liam Payne, Zayn Malik and Harry Styles perform at the MTV Video Music Awards (Photo by Mark J. Terrill/Invision/AP)

Ezra Miller, left, and Emma Watson speak onstage at the MTV Video Music Awards (Photo by Matt Sayles/Invision/AP)

From left, Peter Facinelli, Elizabeth Reaser, Robert Pattinson, Taylor Lautner and Jackson Rathbone speak onstage at the MTV Video Music Awards (Photo by Matt Sayles/Invision/AP)

Drake poses with his award backstage at the MTV Video Music Awards (Photo by Jordan Strauss/Invision/AP)