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Musicians Elton John (L) and Ed Sheeran perform onstage at the 55th Annual GRAMMY Awards at Staples Center on February 10, 2013 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)

Musician Sir Elton John performs onstage at the 55th Annual GRAMMY Awards at Staples Center on February 10, 2013 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)

Singers Jennifer Lopez and Pitbull speak onstage at the 55th Annual GRAMMY Awards at Staples Center on February 10, 2013 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)

Singer Adele accepts Best Pop Solo Performance for "Set Fire to the Rain (Live)" onstage at the 55th Annual GRAMMY Awards at Staples Center on February 10, 2013 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)

Nate Ruess, lead singer of Fun, performs at the 55th annual Grammy Awards in Los Angeles, California, February 10, 2013. REUTERS/Mike Blake

Taylor Swift performs at the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California. (Photo by Christopher Polk/Getty Images for NARAS)

Taylor Swift performs at the 55th annual Grammy Awards in Los Angeles, California, February 10, 2013. REUTERS/Mike Blake

Singer Miranda Lambert performs onstage at the 55th Annual GRAMMY Awards at Staples Center on February 10, 2013 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)

Actress Portia de Rossi, actress Ellen DeGeneres and singer Katy Perry attend the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California. (Photo by Christopher Polk/Getty Images for NARAS)

Justin Timberlake and Jessica Biel attend the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California. (Photo by Christopher Polk/Getty Images for NARAS)

Chris Brown and Rihanna attend the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California. (Photo by Christopher Polk/Getty Images for NARAS)

Chris Brown and Rihanna attend the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California. (Photo by Christopher Polk/Getty Images for NARAS)

Skrillex, left, winner of the awards for best dance/electronica album "Bangarang," best remixed recording non-classical song for "Promises" and best dance recording "Bangarang," and Sirah pose backstage with the award for best dance recording "Bangarang," at the 55th annual Grammy Awards on Sunday, Feb. 10, 2013, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Halestorm pose with their Grammy award for Best Hard Rock/Metal Performance for "Love Bites (So Do I)" backstage at the 55th annual Grammy Awards in Los Angeles, California February 10, 2013. REUTERS/Jonathan Alcorn

Host LL Cool J speaks during the 55th annual Grammy Awards on Sunday, Feb. 10, 2013, in Los Angeles. (Photo by John Shearer/Invision/AP)

Singer Kelly Rowland speaks onstage at the 55th Annual GRAMMY Awards at Staples Center on February 10, 2013 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)

Singers Faith Hill and Tim McGraw speak onstage at the 55th Annual GRAMMY Awards at Staples Center on February 10, 2013 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)

Beyonce and Ellen DeGeneres (R) introduce Justin Timberlake at the 55th annual Grammy Awards in Los Angeles, California, February 10, 2013. REUTERS/Mike Blake

Rapper Wiz Khalifa and singer Miguel perform onstage at the 55th Annual GRAMMY Awards at Staples Center on February 10, 2013 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)

Miguel performs at the 55th annual Grammy Awards in Los Angeles, California, February 10, 2013. REUTERS/Mike Blake

Carrie Underwood accepts the Grammy for best country solo performance for "Blown Away" at the 55th annual Grammy Awards in Los Angeles, California, February 10, 2013. REUTERS/Mike Blake

Nate Ruess (C) and Fun accept the Grammy award for song of the year for "We Are Young" at the 55th annual Grammy Awards in Los Angeles, California, February 10, 2013. REUTERS/Mike Blake

Actor Johnny Depp speaks onstage at the 55th Annual GRAMMY Awards at Staples Center on February 10, 2013 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)

Justin Timberlake performs at the 55th annual Grammy Awards in Los Angeles, California, February 10, 2013. REUTERS/Mike Blake

Justin Timberlake performs with Jay-Z (R) at the 55th annual Grammy Awards in Los Angeles, California, February 10, 2013. REUTERS/Mike Blake

Recording artists Bonnie Raitt, left, and John Mayer present at the 55th annual Grammy Awards on Sunday, Feb. 10, 2013, in Los Angeles. (Photo by John Shearer/Invision/AP)

Host LL Cool J speaks at the 55th annual Grammy Awards in Los Angeles, California, February 10, 2013. REUTERS/Mike Blake

Singer Alicia Keys performs onstage at the 55th Annual GRAMMY Awards at Staples Center on February 10, 2013 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)

Musician Dr. John performs onstage at the 55th Annual GRAMMY Awards at Staples Center on February 10, 2013 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)

Singers Carly Rae Jepsen (L) and Ne-Yo speak onstage at the 55th Annual GRAMMY Awards at Staples Center on February 10, 2013 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)

Frank Ocean accepts the award for best urban contemporary album for "Channel Orange" at the 55th annual Grammy Awards in Los Angeles, California, February 10, 2013. REUTERS/Mike Blake

Musician Jack White performs onstage at the 55th Annual GRAMMY Awards at Staples Center on February 10, 2013 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)

Singer Mikky Ekko performs onstage at the 55th Annual GRAMMY Awards at Staples Center on February 10, 2013 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)

Tribute to late jazz musician Dave Brubeck onstage at the 55th Annual GRAMMY Awards at Staples Center on February 10, 2013 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)

Bruno Mars performs during a tribute to Bob Marley at the 55th annual Grammy Awards in Los Angeles, California, February 10, 2013. REUTERS/Mike Blake

Dan Auerbach of the Black Keys performs with the Preservation Hall Jazz Band at the 55th annual Grammy Awards in Los Angeles, California, February 10, 2013. REUTERS/Mike Blake

Presenter Katy Perry holds out the Grammy award for best new artist to Nate Ruess, singer from Fun, at the 55th annual Grammy Awards in Los Angeles, California, February 10, 2013. REUTERS/Mike Blake

Jay-Z poses backstage with the awards for best rap/sung collaboration for "No Church in the Wild" and best rap performance for "N****s in Paris" at the 55th annual Grammy Awards on Sunday, Feb. 10, 2013, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

The-Dream poses backstage with the awards for best rap/sung collaboration for "No Church in the Wild" at the 55th annual Grammy Awards on Sunday, Feb. 10, 2013, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

The Lumineers, from left, Jeremiah Fraites, Wesley Schultz, Neyla Pekarek and Stelth Ulvang perform at the 55th annual Grammy Awards on Sunday, Feb. 10, 2013, in Los Angeles. (Photo by John Shearer/Invision/AP)

Carrie Underwood performs on stage at the 55th annual Grammy Awards on Sunday, Feb. 10, 2013, in Los Angeles. (Photo by John Shearer/Invision/AP)

Damian Marley, left, and Rihanna perform at the 55th annual Grammy Awards on Sunday, Feb. 10, 2013, in Los Angeles. (Photo by John Shearer/Invision/AP)

Singer Rihanna performs onstage at the 55th Annual GRAMMY Awards at Staples Center on February 10, 2013 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)

Singer Rihanna performs onstage during the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California. (Photo by Christopher Polk/Getty Images for NARAS)

(L-R) Actress Jessica Biel, singer Beyonce and rapper Jay-Z attend the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California. (Photo by Christopher Polk/Getty Images for NARAS)

Singer Adele attends the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California. (Photo by Christopher Polk/Getty Images for NARAS)