They've published a spoof setlist that contains a series of puns emphasising Glastonbury's roots as a working farm - adjusting the title of classic Metallica tracks including Enter Ploughman, Some Kind Of Tractor and The Call Of A Culled Ewe.

James Hetfield and co last night confirmed long-standing rumors that they'd play Worthy Farm's Pyramid Stage on June 28, a week before headlining at Knebworth alongside Iron Maiden and The Prodigy.

Sonisphere bosses said: "It was only last week that the band were officially asked. They immediately asked Team Sonisphere what we thought about releasing them from their exclusive appearance at Sonisphere.