Festival goers enjoy the atmosphere during the Glastonbury Festival at Worthy Farm, Pilton on June 23, 2011 in Glastonbury, England. The festival, which started in 1970 when several hundred hippies paid 1 GBP to watch Marc Bolan, has grown into Europe's largest music festival attracting more than 175,000 people over five days (Photo by Ian Gavan/Getty Images)