A festival goer uses a hula hoop, as revelers gather ahead of this weekends Glastonbury Festival of Music and Performing Arts on Worthy Farm in Somerset, southwest England, on June 25, 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. (Photo by Leon Neal/AFP Photo)

German fan Didi Senft known as El Diablo cheers as the pack rides past during the 234.5 km seventh stage of the 101st edition of the Tour de France cycling race on July 11, 2014 between Epernay and Nancy, northeastern France. (Photo by Lionel Bonaventure/AFP Photo)

(L-R) Poppy Delevingne, Model of the Year Cara Delevingne, Joan Smalls and Karlie Kloss pose in the winners room at the British Fashion Awards at London Coliseum on December 1, 2014 in London, England. (Photo by Pascal Le Segretain/Getty Images)

People dressed as Father Frost, the equivalent of Santa Claus, and Snow Maiden take part in the contest “Yolka-fest-2014” (Fir-festival-2014) in Minsk December 12, 2014. (Photo by Vasily Fedosenko/Reuters)

Miss Bahamas Celeste Marshall on stage at the 2012 Miss Universe National Costume Show on Friday, December 14, 2012 at PH Live in Las Vegas, Nevada. The 89 Miss Universe Contestants will compete for the Diamond Nexus Crown on December 19, 2012. (Photo by AP Photo/Miss Universe Organization L.P., LLLP)

People enjoy the fine weather on the coast at Wembury during the first ever nationwide survey to map the location of the threatened and creatures on March 24, 2011 in near Plymouth, England. Often found on the coast, and particularly in the south west of England, the number of oil beetle species found in the UK has halved in the last 100 years and the survey will help establish the whereabouts of the remaining four species and boost efforts to secure their future. The survey is being launched today by Buglife: The Invertebrate Trust and the National Trust in partnership with Natural England and Oxford University Museum of Natural History. (Photo by Matt Cardy/Getty Images)

Shortlisted. Dragonfly, North York Moors national park, by Jonathan Green: “In June I was at May Beck with some colleagues when someone spotted this Hawker perched in a gorse bush. I love the detail on the wings, and it’s rare to be able to get so much of such a small subject in clear focus. Getting a few scratches was worth it”. (Photo by Jonathan Green/2020 UK National Parks Photography Competition)

A native Brazilian competes in a tora competition, which is a race while carrying a log, during the Indigenous Youth Games of Pataxos nation in Santa Cruz de Cabralia, Bahia state, Brazil, April 18, 2016. (Photo by Roosevelt Cassio/Reuters)