Vampire Weekend, Haim join the band onstage to cover Fleetwood Mac's 'The Chain'
Arctic Monkeys and The Rolling Stones also experience sharp post-festival sales pick-up
Band bring curtain down on this year's festival with debut headline set
Vampire Weekend, Phoenix and Nick Cave and The Bad Seeds will also play live today (June 30)
Banjo player Winston Marshall jokes that they will push bassist Ted Dwane on stage 'in a hospital bed with a drip'
The band will still play Worthy Farm as bassist recovers from brain surgery
Bassist was in hospital following surgery to remove blood clot from his brain
Folk band also cancel their remaining US tour dates
Bandmate Winston Marshall calls Dwane a 'brave little boy' and thanks fans for their support
Band assure fans that Dwane is expected to recover quickly