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Madonna performs at the 57th annual Grammy Awards on Sunday, Feb. 8, 2015, in Los Angeles. (Photo by John Shearer/Invision/AP) ( The 57th Annual Grammy Awards - Show )

Madonna performs at the 57th annual Grammy Awards on Sunday, Feb. 8, 2015, in Los Angeles. (Photo by John Shearer/Invision/AP) ( The 57th Annual Grammy Awards - Show )

Erica Campbell poses in the press room with the award for best gospel album for “Help” at the 57th annual Grammy Awards at the Staples Center on Sunday, Feb. 8, 2015, in Los Angeles. (Photo by Chris Pizzello/Invision/AP) ( The 57th Annual Grammy Awards - Press Room )

LOS ANGELES, CA - FEBRUARY 08: Singer Taylor Swift speaks onstage during The 57th Annual GRAMMY Awards at the at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images) ( 463021008 )

Sam Smith accepts the award for best pop vocal album for “In the Lonely Hour” at the 57th annual Grammy Awards on Sunday, Feb. 8, 2015, in Los Angeles. (Photo by John Shearer/Invision/AP) ( The 57th Annual Grammy Awards - Show )

LOS ANGELES, CA - FEBRUARY 08: Musicians Ian Axel (L) and Chad Vaccarino of A Great Big World speak onstage during the The 57th Annual GRAMMY Awards Premiere Ceremony at Nokia Theatre L.A. Live on February 8, 2015 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images) ( 463013934 )

LOS ANGELES, CA - FEBRUARY 08: Singer-songwriter Rosanne Cash, winner of Best American Roots Performance and Best American Roots Song for 'A Feather's Not a Bird' and Best Americana Album for 'The River & the Thread,' poses in the press room during The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Frazer Harrison/Getty Images) ( 463022234 )

AC/DC performs at the 57th annual Grammy Awards on Sunday, Feb. 8, 2015, in Los Angeles. (Photo by John Shearer/Invision/AP) ( The 57th Annual Grammy Awards - Show )

Angus Young of AC/DC performs at the 57th annual Grammy Awards on Sunday, Feb. 8, 2015, in Los Angeles. (Photo by John Shearer/Invision/AP) ( The 57th Annual Grammy Awards - Show )

Ariana Grande performs at the 57th annual Grammy Awards on Sunday, Feb. 8, 2015, in Los Angeles. (Photo by John Shearer/Invision/AP) ( The 57th Annual Grammy Awards - Show )

LOS ANGELES, CA - FEBRUARY 08: Recording Artist Kanye West and Kim Kardashian attend The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Larry Busacca/Getty Images for NARAS) ( 463019744 )

LOS ANGELES, CA - FEBRUARY 08: (L-R) Singer-songwriters Smokey Robinson, Lady Gaga and Tony Bennett attend The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Larry Busacca/Getty Images for NARAS) ( 463020870 )

LOS ANGELES, CA - FEBRUARY 08: Musician Pharell Williams (L) accepts the Best Pop Solo Performance for "Happy (Live)" from singers Tom Jones (C) and Jessie J onstage during The 57th Annual GRAMMY Awards at the at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images) ( 463022506 )

LOS ANGELES, CA - FEBRUARY 08: Actress Nicole Kidman attends The 57th Annual GRAMMY Awards at the at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images) ( 463021260 )

Max Martin accepts the award for best producer of the year, non-classical at the 57th annual Grammy Awards on Sunday, Feb. 8, 2015, in Los Angeles. (Photo by John Shearer/Invision/AP) ( The 57th Annual Grammy Awards - Show )

Chick Corea poses in the press room with the awards for best improvised jazz solo for “Fingerprints” and best jazz instrumental album for “Trilogy” at the 57th annual Grammy Awards at the Staples Center on Sunday, Feb. 8, 2015, in Los Angeles. (Photo by Chris Pizzello/Invision/AP) ( The 57th Annual Grammy Awards - Press Room )

LOS ANGELES, CA - FEBRUARY 08: Historian Ashley Kahn, winner of Best Album Notes for 'Offering: Live at Temple University' by John Coltrane, poses in the press room during The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Frazer Harrison/Getty Images) ( 463012404 )

Melissa Rivers, left, and Cooper Endicott pose in the press room with Joan Rivers' award for best spoken word album for “Diary Of A Mad Diva” at the 57th annual Grammy Awards at the Staples Center on Sunday, Feb. 8, 2015, in Los Angeles. (Photo by Chris Pizzello/Invision/AP) ( The 57th Annual Grammy Awards - Press Room )

Jessie J, left, and Tom Jones perform at the 57th annual Grammy Awards on Sunday, Feb. 8, 2015, in Los Angeles. (Photo by John Shearer/Invision/AP) ( The 57th Annual Grammy Awards - Show )

Kanye West performs at the 57th annual Grammy Awards on Sunday, Feb. 8, 2015, in Los Angeles. (Photo by John Shearer/Invision/AP) ( The 57th Annual Grammy Awards - Show )

LOS ANGELES, CA - FEBRUARY 08: Actress Anna Kendrick speaks onstage during The 57th Annual GRAMMY Awards at the at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images) ( 463021114 )

Derrick Hodge, from left, Robert Glasper, Lalah Hathaway, Malcolm-Jamal Warner, Casey Benjamin and Mark Colenburg pose in the press room with the award for best traditional R&B performance for “Jesus Children” at the 57th annual Grammy Awards at the Staples Center on Sunday, Feb. 8, 2015, in Los Angeles. (Photo by Chris Pizzello/Invision/AP) ( The 57th Annual Grammy Awards - Press Room )

LOS ANGELES, CA - FEBRUARY 08: Singer 'Weird Al' Yankovic, winner of Best Comedy Album for 'Mandatory Fun,' poses in the press room during The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Frazer Harrison/Getty Images) ( 463022280 )

Beck accepts the award for best rock album for “Morning Phase” at the 57th annual Grammy Awards on Sunday, Feb. 8, 2015, in Los Angeles. (Photo by John Shearer/Invision/AP) ( The 57th Annual Grammy Awards - Show )

Miranda Lambert performs at the 57th annual Grammy Awards on Sunday, Feb. 8, 2015, in Los Angeles. (Photo by John Shearer/Invision/AP) ( APTOPIX The 57th Annual Grammy Awards - Show )

Smokey Robinson, right, presents Beyonce with the award for best R&B performance for “Drunk in Love” at the 57th annual Grammy Awards on Sunday, Feb. 8, 2015, in Los Angeles. (Photo by John Shearer/Invision/AP) ( The 57th Annual Grammy Awards - Show )

Beyonce accepts the award for best R&B performance for “Drunk in Love” at the 57th annual Grammy Awards on Sunday, Feb. 8, 2015, in Los Angeles. (Photo by John Shearer/Invision/AP) ( The 57th Annual Grammy Awards - Show )

John Mayer performs at the 57th annual Grammy Awards on Sunday, Feb. 8, 2015, in Los Angeles. (Photo by John Shearer/Invision/AP) ( The 57th Annual Grammy Awards - Show )

Ed Sheeran, left, and Jeff Lynne perform at the 57th annual Grammy Awards on Sunday, Feb. 8, 2015, in Los Angeles. (Photo by John Shearer/Invision/AP) ( The 57th Annual Grammy Awards - Show )

LOS ANGELES, CA - FEBRUARY 08: Recording Artists Miley Cyrus and Katy Perry attend The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Larry Busacca/Getty Images for NARAS) ( 463025168 )

Gwen Stefani, left, and Adam Levine perform at the 57th annual Grammy Awards on Sunday, Feb. 8, 2015, in Los Angeles. (Photo by John Shearer/Invision/AP) ( The 57th Annual Grammy Awards - Show )

Pharrell Williams performs at the 57th annual Grammy Awards on Sunday, Feb. 8, 2015, in Los Angeles. (Photo by John Shearer/Invision/AP) ( The 57th Annual Grammy Awards - Show )

Pharrell Williams, left, and Hans Zimmer perform at the 57th annual Grammy Awards on Sunday, Feb. 8, 2015, in Los Angeles. (Photo by John Shearer/Invision/AP) ( The 57th Annual Grammy Awards - Show )

LOS ANGELES, CA - FEBRUARY 08: Recording artist Wiz Khalifa (R) and son Sebastian Taylor Thomaz attend The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Jason Merritt/Getty Images) ( 463027318 )

New England Patriots football players Julian Edelman, left, and Malcolm Butler pose in the press room at the 57th annual Grammy Awards at the Staples Center on Sunday, Feb. 8, 2015, in Los Angeles. (Photo by Chris Pizzello/Invision/AP) ( The 57th Annual Grammy Awards - Press Room )

LOS ANGELES, CA - FEBRUARY 08: (L-R) Musicians Neil Perry, Kimberly Perry and Reid Perry of The Band Perry, winners of Best Country Duo/Group Performance for 'Gentle on My Mind,' pose in the press room during The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Frazer Harrison/Getty Images) ( 463027292 )

Hozier, left, and Annie Lennox perform at the 57th annual Grammy Awards on Sunday, Feb. 8, 2015, in Los Angeles. (Photo by John Shearer/Invision/AP) ( The 57th Annual Grammy Awards - Show )

LOS ANGELES, CA - FEBRUARY 08: Madonna performs onstage during The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Larry Busacca/Getty Images for NARAS) ( 463030120 )

LOS ANGELES, CA - FEBRUARY 08: Recording Artists Jay Z and Beyonce attend The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Larry Busacca/Getty Images for NARAS) ( 463031182 )

LOS ANGELES, CA - FEBRUARY 08: Libby Barnes and recording artist Hunter Hayes attend The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Larry Busacca/Getty Images for NARAS) ( 463028490 )

LOS ANGELES, CA - FEBRUARY 08: Recording artists Blake Shelton (L) and Miranda Lambert attend The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Jason Merritt/Getty Images) ( 463031440 )

Lady Gaga, left, and Tony Bennett perform at the 57th annual Grammy Awards on Sunday, Feb. 8, 2015, in Los Angeles. (Photo by John Shearer/Invision/AP) ( The 57th Annual Grammy Awards - Show )

LOS ANGELES, CA - FEBRUARY 08: Singer-songwriter Miranda Lambert, winner of Best Country Album for 'Platinum,' poses in the press room during The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Frazer Harrison/Getty Images) ( 463032282 )

LOS ANGELES, CA - FEBRUARY 08: (L-R) Madonna, Annalise Bishop and actor Jamie Foxx attend The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Larry Busacca/Getty Images for NARAS) ( 463032196 )

LOS ANGELES, CA - FEBRUARY 08: Singer Eric Church (C) performs "Give Me Back My Hometown" onstage during The 57th Annual GRAMMY Awards at the at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images) ( 463032692 )

LOS ANGELES, CA - FEBRUARY 08: Recording Artists Stevie Wonder and Usher perform onstage during The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Larry Busacca/Getty Images for NARAS) ( 463033130 )

Dwight Yoakam at the 57th annual Grammy Awards on Sunday, Feb. 8, 2015, in Los Angeles. (Photo by John Shearer/Invision/AP) ( The 57th Annual Grammy Awards - Show )

LOS ANGELES, CA - FEBRUARY 08: Singer Usher (R) and harpist Melody Tai perform "If It's Magic" onstage during The 57th Annual GRAMMY Awards at the at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images) ( 463032772 )

Katy Perry performs at the 57th annual Grammy Awards on Sunday, Feb. 8, 2015, in Los Angeles. (Photo by John Shearer/Invision/AP) ( The 57th Annual Grammy Awards - Show )

LOS ANGELES, CA - FEBRUARY 08: Recording Artist Katy Perry onstage during The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Larry Busacca/Getty Images for NARAS) ( 463031838 )

Paul McCartney, from left, Kanye West and Rihanna perform at the 57th annual Grammy Awards on Sunday, Feb. 8, 2015, in Los Angeles. (Photo by John Shearer/Invision/AP) ( The 57th Annual Grammy Awards - Show )

Mary J. Blige, left, and Sam Smith perform at the 57th annual Grammy Awards on Sunday, Feb. 8, 2015, in Los Angeles. (Photo by John Shearer/Invision/AP) ( The 57th Annual Grammy Awards - Show )

LOS ANGELES, CA - FEBRUARY 08: Actress Kristen Wiig and dancer Maddie Ziegler perform onstage during The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Larry Busacca/Getty Images for NARAS) ( 463034958 )

LOS ANGELES, CA - FEBRUARY 08: Recording artist Prince speaks onstage during The 57th Annual GRAMMY Awards at the at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images) ( 463033970 )

LOS ANGELES, CA - FEBRUARY 08: Recording Artists Kanye West and Taylor Swift attend The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Larry Busacca/Getty Images for NARAS) ( 463034516 )

Dave Grohl, left, and Jordyn Blum arrive at the 57th annual Grammy Awards at the Staples Center on Sunday, Feb. 8, 2015, in Los Angeles. (Photo by Jordan Strauss/Invision/AP) ( The 57th Annual Grammy Awards - Arrivals )

LOS ANGELES, CA - FEBRUARY 08: (L-R) Musicians Jerry Douglas, Shawn Camp, John Warren, and Charlie Cushman of The Earls of Leicester, winners of Best Bluegrass Album for 'The Earls of Leicester,' pose in the press room during The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Frazer Harrison/Getty Images) ( 463035064 )

LOS ANGELES, CA - FEBRUARY 08: Teacher Jared Cassedy, recipient of the Recording Academy and GRAMMY Foundation Music Educator Award, poses in the press room during The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Frazer Harrison/Getty Images) ( 463036222 )

LOS ANGELES, CA - FEBRUARY 08: Recording artist Stevie Wonder (L) and actor/singer Jamie Foxx speak onstage during The 57th Annual GRAMMY Awards at the at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images) ( 463035550 )

LOS ANGELES, CA - FEBRUARY 08: Recording artists Beck (L) and Chris Martin perform "Heart Is a Drum" onstage during The 57th Annual GRAMMY Awards at the at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images) ( 463035420 )

LOS ANGELES, CA - FEBRUARY 08: Singer Usher performs "If It's Magic" onstage during The 57th Annual GRAMMY Awards at the at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images) ( 463036126 )

Juanes performs at the 57th annual Grammy Awards on Sunday, Feb. 8, 2015, in Los Angeles. (Photo by John Shearer/Invision/AP) ( The 57th Annual Grammy Awards - Show )

LOS ANGELES, CA - FEBRUARY 08: Singer Beyonce performs "Precious Lord, Take My Hand" onstage during The 57th Annual GRAMMY Awards at the at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images) ( 463037280 )

LOS ANGELES, CA - FEBRUARY 08: Rapper Common (L) and singer John Legend perform "Glory" onstage during The 57th Annual GRAMMY Awards at the at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images) ( 463038152 )

Rodney Jerkins poses in the press room with the award for record of the year for "Stay With Me" at the 57th annual Grammy Awards at the Staples Center on Sunday, Feb. 8, 2015, in Los Angeles. (Photo by Chris Pizzello/Invision/AP) ( The 57th Annual Grammy Awards - Press Room )

Beyonce poses in the press room with the awards for best R&B performance for “Drunk in Love”, best surround sound album for “Beyonce”, and best R&B song for “Drunk in Love” at the 57th annual Grammy Awards at the Staples Center on Sunday, Feb. 8, 2015, in Los Angeles. (Photo by Chris Pizzello/Invision/AP) ( APTOPIX The 57th Annual Grammy Awards - Press Room )

LOS ANGELES, CA - FEBRUARY 08: Singer-songwriter Sam Smith, winner of Record of the Year and Song of the Year for 'Stay with Me,' Best Pop Vocal Album for 'In the Lonely Hour,' and Best New Artist, poses in the press room during The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California. (Photo by Frazer Harrison/Getty Images) ( 463038746 )