From left, Tony Iommi, Ozzy Osbourne and Geezer Butler speak on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Jaime Foxx speaks on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Jaime Foxx speaks on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Ringo Starr performs on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Nate Ruess performs on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Pink performs "Just Give Me a Reason" on stage at the 56th annual Grammy Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Nate Ruess, left, and Pink perform "Just Give Me a Reason" on stage at the 56th annual Grammy Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Robin Thicke performs on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Robin Thicke performs on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Robin Thicke performs on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Walter Parazaider, left, and Robin Thicke perform on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Taylor Swift performs on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Charlie Wilson, left, and Kevin Hart speak on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Robin Thicke performs on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Peter Cetera of Chicago performs a medley on stage at the 56th annual Grammy Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Taylor Swift performs on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Keith Urban performs on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Robin Thicke performs a medley on stage at the 56th annual Grammy Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Taylor Swift performs on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Keith Urban, left, and Gary Clark, Jr. perform "Cop Car" on stage at the 56th annual Grammy Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Katy Perry performs on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Katy Perry performs on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Katy Perry performs on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Juicy J performs on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Juicy J performs on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Katy Perry performs on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Hunter Hayes performs on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Hunter Hayes performs on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Hunter Hayes performs on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Hunter Hayes performs "Invisible" on stage at the 56th annual Grammy Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Hunter Hayes performs "Invisible" on stage at the 56th annual Grammy Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Host LL Cool J speaks on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Hunter Hayes performs on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Pharrell Williams, left, and Anna Kendrick speak on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Host LL Cool J speaks on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Hunter Hayes performs on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Hunter Hayes performs on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Hunter Hayes performs on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Beyonce performs on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Hunter Hayes performs on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Beyonce, left, and Jay-Z perform on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Beyonce, left, and Jay-Z perform on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Beyonce, left, and Jay-Z perform on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Host LL Cool J speaks on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Charlie Musselwhite, left, and Ben Harper, winners of the best blues album award for "Get Up!", walk on stage at the pre-telecast of the 56th annual Grammy Awards on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Kacey Musgraves, winner of the best country song award for "Merry Go 'Round", walks on stage at the pre-telecast of the 56th annual GRAMMY Awards on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Tye Tribbett reacts on stage as he is announced the winner for the best gospel song award for "If He Did It Before... Same God [Live]" at the pre-telecast of the 56th annual GRAMMY Awards on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Host Cyndi Lauper speaks on stage at the pre-telecast of the 56th annual GRAMMY Awards on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

From left, Macklemore, Mary Lambert, Madonna, Ryan Lewis and Queen Latifah perform on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Madonna performs on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Mary Lambert, left, and Madonna perform on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Madonna, left, and Queen Latifah perform on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

From left, Macklemore, Mary Lambert, Madonna, Ryan Lewis and Queen Latifah perform on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Performers, from left, Macklemore, Mary Lambert, Madonna, Ryan Lewis and Queen Latifah appear on stage during a performance of "Same Love" at the 56th annual Grammy Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Pharrell Williams performs on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Julia Roberts speaks on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

From left, Nile Rodgers, Pharrell Williams, Daft Punk and Stevie Wonder perform on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

From left, Nile Rodgers, Pharrell Williams, and Stevie Wonder perform on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

From left, Nile Rodgers, Pharrell Williams, Daft Punk and Stevie Wonder perform on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Julia Roberts speaks on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Nile Rodgers, left, and Pharrell Williams perform on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Pharrell Williams, left, and Stevie Wonder perform on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Pharrell Williams, left, and Stevie Wonder perform on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Julia Roberts speaks on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Julia Roberts speaks on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Katy Perry performs on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Kendrick Lamar performs on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Kendrick Lamar, left, and Dan Reynolds of Imagine Dragons perform at the 56th annual Grammy Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Kendrick Lamar, center left, and Dan Reynolds, center right, perform at the 56th annual Grammy Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Kendrick Lamar performs at the 56th annual Grammy Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Katy Perry performs on stage at the 56th annual GRAMMY Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Katy Perry performs "Dark Horse" at the 56th annual Grammy Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Pharrell Williams, left, and Anna Kendrick present the award for best new artist at the 56th annual Grammy Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Pharrell Williams, left, and Anna Kendrick present the award for best new artist at the 56th annual Grammy Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Pharrell Williams, left, and Anna Kendrick present the award for nest new artist at the 56th annual Grammy Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

Singer Skylar Grey performs on stage during the 16th Annual GRAMMY Foundation Legacy Concert "A Song Is Born," on Thursday, January 23, 2014 in Los Angeles. (Photo by Paul a. Hebert/Invision/AP)

Musician Dan Wilson performs on stage during the 16th Annual GRAMMY Foundation Legacy Concert "A Song Is Born," on Thursday, January 23, 2014 in Los Angeles. (Photo by Paul a. Hebert/Invision/AP)

Singer Skylar Grey performs on stage during the 16th Annual GRAMMY Foundation Legacy Concert "A Song Is Born," on Thursday, January 23, 2014 in Los Angeles. (Photo by Paul a. Hebert/Invision/AP)

Singer Skylar Grey performs on stage during the 16th Annual GRAMMY Foundation Legacy Concert "A Song Is Born," on Thursday, January 23, 2014 in Los Angeles. (Photo by Paul a. Hebert/Invision/AP)

Musician Kris Kristofferson performs on stage during the 16th Annual GRAMMY Foundation Legacy Concert "A Song Is Born," on Thursday, January 23, 2014 in Los Angeles. (Photo by Paul a. Hebert/Invision/AP)

Singer Skylar Grey performs on stage during the 16th Annual GRAMMY Foundation Legacy Concert "A Song Is Born," on Thursday, January 23, 2014 in Los Angeles. (Photo by Paul a. Hebert/Invision/AP)

John Rzeznik of the Goo Goo Dolls performs on stage during the 16th Annual GRAMMY Foundation Legacy Concert "A Song Is Born," on Thursday, January 23, 2014 in Los Angeles. (Photo by Paul a. Hebert/Invision/AP)

Singer-songwriter Paul Williams performs on stage during the 16th Annual GRAMMY Foundation Legacy Concert "A Song Is Born," on Thursday, January 23, 2014 in Los Angeles. (Photo by Paul a. Hebert/Invision/AP)

Musician Ryan Shaw performs on stage during the 16th Annual GRAMMY Foundation Legacy Concert "A Song Is Born," on Thursday, January 23, 2014 in Los Angeles. (Photo by Paul a. Hebert/Invision/AP)

Singer Skylar Grey performs on stage during the 16th Annual GRAMMY Foundation Legacy Concert "A Song Is Born," on Thursday, January 23, 2014 in Los Angeles. (Photo by Paul a. Hebert/Invision/AP)

Musician Kris Kristofferson performs on stage during the 16th Annual GRAMMY Foundation Legacy Concert "A Song Is Born," on Thursday, January 23, 2014 in Los Angeles. (Photo by Paul a. Hebert/Invision/AP)

Musician Kris Kristofferson performs on stage during the 16th Annual GRAMMY Foundation Legacy Concert "A Song Is Born," on Thursday, January 23, 2014 in Los Angeles. (Photo by Paul a. Hebert/Invision/AP)

Musician Kris Kristofferson performs on stage during the 16th Annual GRAMMY Foundation Legacy Concert "A Song Is Born," on Thursday, January 23, 2014 in Los Angeles. (Photo by Paul a. Hebert/Invision/AP)

Musician Kris Kristofferson performs on stage during the 16th Annual GRAMMY Foundation Legacy Concert "A Song Is Born," on Thursday, January 23, 2014 in Los Angeles. (Photo by Paul a. Hebert/Invision/AP)

Musician Kris Kristofferson performs on stage during the 16th Annual GRAMMY Foundation Legacy Concert "A Song Is Born," on Thursday, January 23, 2014 in Los Angeles. (Photo by Paul a. Hebert/Invision/AP)

Singer-songwriter Paul Williams performs on stage during the 16th Annual GRAMMY Foundation Legacy Concert "A Song Is Born," on Thursday, January 23, 2014 in Los Angeles. (Photo by Paul a. Hebert/Invision/AP)

Singer-songwriter Paul Williams performs on stage during the 16th Annual GRAMMY Foundation Legacy Concert "A Song Is Born," on Thursday, January 23, 2014 in Los Angeles. (Photo by Paul a. Hebert/Invision/AP)

Singer-songwriter Paul Williams performs on stage during the 16th Annual GRAMMY Foundation Legacy Concert "A Song Is Born," on Thursday, January 23, 2014 in Los Angeles. (Photo by Paul a. Hebert/Invision/AP)