Ronnie Ortiz-Magro, left, and Samantha Giancola from MTV's "Jersey Shore," arrive at the MTV Video Music Awards on Thursday, Sept. 6, 2012, in Los Angeles. (Photo by Matt Sayles/Invision/AP)
British singer-songwriter Rita Ora arrives at the MTV Video Music Awards on Thursday, Sept. 6, 2012, in Los Angeles. (Photo by Matt Sayles/Invision/AP)
Miley Cyrus and her sister Brandi Cyrus attend the MTV Video Music Awards on Thursday, Sept. 6, 2012, in Los Angeles. (Photo by Jordan Strauss/Invision/AP)
Singer Tom Petty, center, Dana York, right, and Adria Petty arrive at the MTV Video Music Awards on Thursday, Sept. 6, 2012, in Los Angeles. (Photo by Matt Sayles/Invision/AP)
Members of the British band One Direction, from left, Louis Tomlinson, Zayn Malik, Niall Horan, Harry Styles and Liam Payne arrive at the MTV Video Music Awards on Thursday, Sept. 6, 2012, in Los Angeles. (Photo by Jordan Strauss/Invision/AP)
Nicki Minaj, left, and Lil Wayne sit in the audience in the audience at the MTV Video Music Awards on Thursday, Sept. 6, 2012, in Los Angeles. (Photo by Mark J. Terrill/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)
In this photo taken June 14, 2011, the dress made of meat worn by Lady Gaga at the 2010 MTV Video Music Awards is shown in the vault of the Rock and Roll Hall of Fame and Museum to be shown in the Women Who Rock exhibit in Cleveland, Ohio. The dress has made its way to Washington, along with Loretta Lynn's song about “The Pill” and other relics from music history. Lady Gaga's dress from the 2010 MTV Video Music Awards is being displayed at the National Museum of Women in the Arts with an explanation of her political message. (AP Photo/Mark Duncan, file)