Best of Grammy Awards

Madonna performs "Living for Love". REUTERS/Lucy Nicholson

Paul McCartney and Rihanna take a bow after performing "FourFiveSeconds" with Kanye West (not pictured). REUTERS/Lucy Nicholson

Sam Smith performs "Stay With Me" with Mary J. Blige. REUTERS/Lucy Nicholson

Beck calls out to Kanye West, who pretended to take the stage after Beck won album of the year for "Morning Phase". REUTERS/Lucy Nicholson

Beyonce performs "Take My Hand". REUTERS/Lucy Nicholson

Beck and Chris Martin perform "Heart is a Drum". REUTERS/Lucy Nicholson

Lady Gaga and Tony Bennett embrace as they perform "Cheek to Cheek". REUTERS/Lucy Nicholson

Taylor Swift presents the award for best new artist to Sam Smith. REUTERS/Lucy Nicholson

Common and John Legend stand after performing "Glory". REUTERS/Lucy Nicholson

Miranda Lambert performs "Little Red Wagon". REUTERS/Lucy Nicholson

Hozier performs "Take Me To Church" with Annie Lennox. REUTERS/Lucy Nicholson

Brian Johnson of AC/DC performs a medley of songs to open the show. REUTERS/Lucy Nicholson

Gwen Stefani and Adam Levine perform "My Heart is Open". REUTERS/Lucy Nicholson

Sam Smith accepts the award for best pop vocal album for "In the Lonely Hour". REUTERS/Lucy Nicholson

Ariana Grande performs "Just a Little Bit of Your Heart". REUTERS/Lucy Nicholson

Beck watches Kanye West, who pretended to take the stage after Beck won album of the year for "Morning Phase". REUTERS/Lucy Nicholson

Ed Sheeran performs "Thinking Out Loud". REUTERS/Lucy Nicholson

Katy Perry performs "By The Grace of God". REUTERS/Lucy Nicholson

Paul McCartney and Rihanna embrace after performing "FourFiveSeconds" with Kanye West (not pictured). REUTERS/Lucy Nicholson

AC/DC after playing a medley of songs to open the show. REUTERS/Lucy Nicholson

Beck accepts the award for album of the year for "Morning Phase". REUTERS/Lucy Nicholson

Presenters Julian Edelman (L) and Malcolm Butler, of the New England Patriots, pose in the press room. REUTERS/Mike Blake

Usher performs "If It's Magic" with Stevie Wonder. REUTERS/Lucy Nicholson

"Weird Al" Yankovic poses with the award for Best Comedy Album for "Mandatory Fun" backstage. REUTERS/Mike Blake

Dwight Yoakam performs "Hold My Hand" with Brandy Clark (not piuctured). REUTERS/Lucy Nicholson

Jeff Lynne perfoms a medley of Electric Light Orchestra songs. REUTERS/Lucy Nicholson

Actress Anna Kendrick introduces a performance by Ariana Grande. REUTERS/Lucy Nicholson

Country artist Miranda Lambert poses with her award for Best Country Album for "Platinum" in the press room. REUTERS/Mike Blake

Eric Church performs "Give Me Back My Hometown". REUTERS/Lucy Nicholson

Pharrell Williams performs "Happy". REUTERS/Lucy Nicholson

Miranda Lambert performs "Little Red Wagon". REUTERS/Lucy Nicholson

Singer Juanes performs "Juntos". REUTERS/Lucy Nicholson

Pharrell Williams performs "Happy" with composer Hans Zimmer. REUTERS/Lucy Nicholson

Lady Gaga performs "Cheek to Cheek" with Tony Bennett. REUTERS/Lucy Nicholson

Brian Johnson and Angus Young of AC/DC perform a medley of songs to open the show. REUTERS/Lucy Nicholson

Madonna performs "Living for Love". REUTERS/Lucy Nicholson