Glastonbury Festival organisers Michael and Emily Eavis are already booking acts for the event’s 50th anniversary in 2020.

Singer Ed Sheeran will headline the final night of this year’s five-day event, which has seen performances from Radiohead, Foo Fighters, Stormzy, Katy Perry and Jeremy Corbyn.

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Labour leader Jeremy Corbyn (left) and event organiser Michael Eavis speak to the crowd from the Pyramid stage at Glastonbury Festival (Yui Mok/PA)

Chants of the Labour leader’s name have been echoing across the 900-acre site in Pilton, Somerset, since the gates opened on Wednesday morning.

Revellers have enjoyed mainly dry weather, with Wednesday seeing dozens treated by paramedics after the festival’s hottest day in its 47-year-history.

Avon and Somerset Police said crime figures were lower than last year, with 140 crimes reported by Sunday morning compared to 160 the previous year.

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David Beckham (left) and Michael Eavis pose for photographs outside a completed house in a housing development in Pilton village in Somerset (Ben Birchall/PA)

There have been 64 arrests – mainly for theft and drug offences – since the musical extravaganza opened, an increase on the 35 made last year.

In an interview with the Glastonbury Free Press, the festival’s on-site newspaper, Emily Eavis described 2017’s event as “the best one yet”.

“The weather has definitely helped but there have been so many wonderful things,” she said.

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Michael Eavis celebrates a completed house in a housing development in Pilton village in Somerset (Yui Mok/PA)

“It’s the atmosphere around the site. It’s been incredible. We work so hard on this festival, that you can almost forget how good it is.

“It’s the best thing in the whole world. I’ve had a great time. Everyone has.”

Ms Eavis and her father Michael, 81, insisted it was right for 2018 to be a fallow year to allow the land, village and local wildlife to rest.

Britain Glastonbury 2017 Festival Day 4
Singer Dave Grohl performs with Foo Fighters at the Glastonbury Festival (Grant Pollard/Invision/AP)

“We’ve got lots of reasons why we need a fallow year,” Mr Eavis said.

Ms Eavis added: “It gives us a chance to reflect. Everybody has time to recover and come back with fresh ideas.

“We’ll be back here at the farm in 2019 and we’re definitely here in 2020 for our 50th birthday.”

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Fans watch Foo Fighters perform on The Pyramid Stage at the Glastonbury Festival (Yui Mok/PA)

Dairy farmer Mr Eavis added: “We’re already booking acts for that one.

“Half a century. It’s an incredible feat actually. We’ve been through so many struggles to get here.”

He also spoke of plans for an event off the Worthy Farm site, called Variety Bazaar, which he described as “the last big gamble in my life”.

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Stormzy performing on the Other Stage at the Glastonbury Festival (Ben Birchall/PA)

“We have no plans to stop doing the festival here, but we want to try something in another location away from the farm, possibly in 2021,” he said.

The last day of 2017’s festival will also host Haim, Rag ‘n’ Bone man and Emeli Sande, along with Goldfrapp, Kano, Kiefer Sutherland and Scouting For Girls.