Katy Perry and One Direction also become world record holders
An interview given by former Oasis member made drummer give up taking drugs
James Hetfield and co played a 'By Request' setlist voted by fans at the Knebworth event
Organiser Michael Eavis says US rockers played 'like their lives depended on it'
Band released black beachballs into crowd at climax of headline set
The US metal band topped the bill on the Pyramid Stage
Following Pyramid Stage debut, Lars Ulrich has set his sights on performing at Superbowl and Academy Awards
"They're so polite about it," added the festival founder
The drummer also bigs up Kasabian, The Horrors and The Black Keys
Guitarist confused Worthy Farm festival for Irish gig in 2004