GLASTONBURY, ENGLAND – JUNE 25: A reveller enjoys the silent all-night disco in the Dance Tent on the second day of the Glastonbury Music Festival 2005 at Worthy Farm, Pilton on June 25, 2005 in Somerset, England. The headphones cost ?75, have two channels and over a 1000 were given out. The festival runs until June 26. (Photo by Matt Cardy/Getty Images) *** Local Caption ***