Taylor Swift and Selena Gomez attend The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: AFP

Selena Gomez and Taylor Swift attend The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: AP

Adele attends The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: Getty

Lady Gaga attends The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: AP

Lady Gaga attends The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: AFP

Jaxon Bieber and Justin Bieber attend The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: AP

Jaxon Bieber and Justin Bieber attend The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: AP

Gary Clark Jr. and Nicole Trunfio attend The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: Getty

Nicole Trunfio attends The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: Getty

John Legend and Chrissy Teigen attend The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: Getty

Ellie Goulding attends The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: Getty

Florence Welch attends The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: Getty

The Weeknd and Bella Hadid attend The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: AP

The Weekend and Bella Hadid attend The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: AP

Giuliana Rancic attends The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: Getty

Pharrell Williams and Helen Lasichanh attend The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: AP

Courtney Barnett attends The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: AP

Dominic Simper, Jay Watson, Kevin Parker, and Cam Avery of Tame Impala attend The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: AP

Demi Lovato attends The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: AP

Carrie Underwood attends The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: AP

Russell Wilson and Ciara attends The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: Getty

Alessandra Ambrosio attends The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: Getty

Zendaya attends The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: AP

Zendaya attends The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: Getty

Taylor Swift attends The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: AP

Ariana Grande attends The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: Getty

Ariana Grande attends The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: Getty

Big Sean attends The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: Getty

Janelle Monae attends The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: AFP

Kaley Cuoco attends The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: Getty

Dave Grohl and Jordyn Blum attend The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: AP

Franz Stahl, Nate Mendel, Pat Smear, Taylor Hawkins, Dave Grohl, and Chris Shiflett of Foo Fighters attend The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: Getty

Johnny Depp, Joe Perry, and Alice Cooper of the Hollywood Vampires attend The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: Getty

Nick Lachey and Vanessa Lachey attend The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: Getty

Matt Bellamy and Elle Evans attend The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: AP

Meghan Trainor attends The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: Getty

Tyrese Gibson, left, and Shayla Gibson arrive at the 58th annual Grammy Awards. Picture: AP

Anna Kendrick attends The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: Getty

Wiz Khalifa attends The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: Getty

Sam Smith attends The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: Getty

Selena Gomez attends The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: AP

Nick Simmons, Sophie Simmons, Gene Simmons and Shannon Tweed attend The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: AP

Serayah attend The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: AP

Kacey Musgraves attends The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: Getty

Josephine de la Baume and Mark Ronson attend The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: Getty

Faith Evans attends The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: AP

Host LL Cool J attends The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: Getty

Julia Carey and James Corden attend The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: AP

Robin Thicke attends The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: AFP

Mya attends The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: AP

Travis Barker, Alabama Barker and Landon Barker attend The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: AP

James Bay attends The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: AP

Nazanin Mandi and Miguel attend The 58th GRAMMY Awards at Staples Center on February 15, 2016 in Los Angeles. Picture: Getty

Singer Lady Gaga arrives on the red carpet during the 58th Annual Grammy Music Awards in Los Angeles February 15, 2016. AFP PHOTO/ Valerie MACON

Singer Lady Gaga arrives on the red carpet during the 58th Annual Grammy Music Awards in Los Angeles February 15, 2016. AFP PHOTO/ Valerie MACON

Singer Lady Gaga arrives on the red carpet during the 58th Annual Grammy Music Awards in Los Angeles February 15, 2016. AFP PHOTO/ Valerie MACON

Singer Lady Gaga arrives on the red carpet during the 58th Annual Grammy Music Awards in Los Angeles February 15, 2016. AFP PHOTO/ Valerie MACON