US singer Kelis performs on the Pyramid Stage, on the second day of the Glastonbury Festival of Music and Performing Arts in Somerset, southwest England, on June 28, 2014. US metal giants Metallica will play this year's coveted Saturday night headline spot at Britain's Glastonbury festival, organisers announced Thursday. It will be the 'Master of Puppets' four-piece's first appearance at the legendary festival, held in south west England, following on from The Rolling Stones' Worthy Farm debut last year. AFP PHOTO / LEON NEAL
Credit: LEON NEAL
Singers Miley Cyrus (L) and Kelis attend the 56th annual GRAMMY Awards Pre-GRAMMY Gala and Salute to Industry Icons honoring Lucian Grainge at The Beverly Hilton on January 25, 2014 in Los Angeles, California.
Credit: Lester Cohen
Kelis performs on stage for Festival No6 on September 7, 2014 in Portmeirion, United Kingdom.
Credit: Andrew Benge
Singer Kelis attends as SMIRNOFF Vodka and Spotify throw one lucky winner the 'Ultimate House Party' with special performances by Kelis and JayCeeOh on June 12, 2014 in New York City.
Credit: Cindy Ord
Kelis (Born Kelis Rogers) sighted at BBC Radio Studios on February 25, 2014 in London, England.
Credit: Ben Pruchnie
Singer Kelis attends the 56th annual GRAMMY Awards Pre-GRAMMY Gala and Salute to Industry Icons honoring Lucian Grainge at The Beverly Hilton on January 25, 2014 in Los Angeles, California.
Credit: Steve Granitz
Kelis performs on stage at Splendour In the Grass 2014 on July 25, 2014 in Byron Bay, Australia.