2. New Order 1981
Until this point, Glastonbury had been a hippy haven. Then up popped Manchester’s New Order, recently born from the ashes of Joy Division. Short-haired, suited and tipsy, they played angular, melancholic electronic rock on the new Pyramid Stage. A glimpse into the future.
#1: David Bowie 1971
The rest of the list http://www.telegraph.co.uk/culture/glastonbury/7850245/Glastonbury-2010-10-top-Glastonbury-moments.html