GLASTONBURY, ENGLAND – JUNE 24: (L-R) Dusty Hill, Frank Beard and Billy Gibbons of ZZ Top perform on the Pyramid Stage during the Glastonbury Festival at Worthy Farm, Pilton on June 24, 2016 in Glastonbury, England. Now its 46th year the festival is one largest music festivals in the world and this year features headline acts Muse, Adele and Coldplay. The Festival, which Michael Eavis started in 1970 when several hundred hippies paid just £1, now attracts more than 175,000 people. (Photo by Ian Gavan/Getty Images)