Grammy-winning folk-rock group Mumford and Sons gave a stunning performance as they closed this year's Glastonbury Festival on Somerset's Worthy Farm.

There were concerns if the band will pull out of the event after bassist Ted Dwane underwent surgery for a blood clot on his brain last month.

"To be honest, Ted dealt with the whole thing better than any of us could have imagined," keyboardist Ben Lovett said in an interview with The Radio Times ahead of the performance, "All we feel is incredibly grateful and happy that he's going to be OK and that we're going to get back out on that stage at Glastonbury as four brothers and do what we do."

The group ended their 90-minute performance by playing the Joe Cocker version of A Little Help From My Friends, and were joined by other bands - Vampire Weekend, The Vaccines and The Staves.

"I would like to give a massive thank you to Michael Eavis and his family for having us here and letting us be complete idiots in his field for a couple of days," Mumford told to the crowd.

Meanwhile, festival organiser Michael Eavis told the BBC that The Rolling Stones, who are celebrating 50 years together were "the highlight of 43 years of Glastonbury".

Celebrities including Prince Harry, Cressida Bonas, Kate Moss, Wayne Rooney and Colleen Rooney, Katherine Jenkins, Sienna Miller, Florence Welch and presenter Dermot O'Leary were present at the event.

The festival started in 1970 with just 1,500 concertgoers on a farm, and each paying one pound and receiving free milk. Eavis now runs Glastonbury with his daughter, Emily.

Marcus Mumford, lead singer of Mumford & Sons, performs on the Pyramid Stage at the Glastonbury music festival at Worthy Farm in Somerset, June 30, 2013.Reuters
Mumford & Sons, (from L) Ben Lovett , Marcus Mumford, Winston Marshall and Ted Dwane performReuters
Bassist Ted Dwane of Mumford & SonsReuters
Marcus Mumford, lead singer of Mumford & SonsReuters
Marcus Mumford, lead singer of Mumford & SonsReuters
A Sunday service is held in the healing fieldsReuters
Japanese performance artists Masanori Takeuchi shake hands with festival goersReuters
The Pink Ladies pose for photographsReuters
Revellers take part in a tomato fightReuters