Festival-goers dance to Jarvis Cocker and his band Pulp as the sunsets during the third day of the Glastonbury Festival June 25, 2011. This year's festival featured headline acts U2, Coldplay and Beyonce. Now in its fifth decade, the event has grown from a humble gathering of 1,500 people on Michael Eavis's Worthy dairy farm in 1970, each paying 1 pound and receiving free milk, to a giant five-day celebration of music costing 195 pounds for a basic ticket. (Adrian Dennis/AFP/Getty Images))