From a low-key start in 1970, the Glastonbury Festival has grown in scale and stature to become a legendary destination for music fans and those in search of good times.
It has had its ups and downs over the past 34 years - from riots to battles with the local council. Here are some of the key moments in Glastonbury history.
Inspired by the Bath Blues Festival, 35-year-old Somerset dairy farmer Michael Eavis decided to organise a two-day music show on his land.
Marc Bolan turned up in a velvet-covered car, but the good vibes were overshadowed by the death of Jimi Hendrix the day before. Despite predicting that "this is the quickest way of clearing my overdraft", Mr Eavis lost £1,500. But the event was still seen as a success.
Acts: Marc Bolan and T-Rex, Quintessence and Ian Anderson.
Entry: £1, including free milk.
The first proper Glastonbury festival, and considered to be the "legendary one". Funded by "rich hippies", as Mr Eavis put it.
The Pyramid Stage at the 1971 festival
The event was timed to coincide with the summer solstice and featured the first Pyramid Stage, which was made out of scaffolding and plastic sheeting and positioned on a spring near a ley line.
Acts: David Bowie, Fairport Convention, Joan Baez, Hawkwind.
After 1971, Mr Eavis did not organise any festivals - but hippies kept turning up anyway.
A successful impromptu gathering in 1978 led him to resurrect the full-scale event the following year.
It became a three-day show, the main stage was provided by Genesis, funds went to the UN Year of the Child and there were children's and theatre areas for the first time.
Acts: Peter Gabriel, Steve Hillage, Tom Robinson.
Mr Eavis says this festival was "our breakthrough", doubling the previous attendance and raising funds for the Campaign for Nuclear Disarmament (CND) for the first time.
Aswad appeared in 1981
A permanent Pyramid Stage was built out of army surplus sheet metal, and was used as a cow shed for the rest of the year.
Acts: New Order, Ginger Baker, Aswad.
The festival was now an annual event, and Mr Eavis successfully defended himself in court against five charges of breaching the licence the previous year.
1983 had been the first time a licence was required after a law introduced by the local MP, who Mr Eavis says wanted to stop the festival. The first Green Field was introduced in 1984, partly to accommodate new-age travellers.
Acts: The Waterboys, The Smiths, Elvis Costello.
The council refused the festival a licence, but Mr Eavis took it to court and won.
He claimed councillors were trying to block it for political reasons because he had "rattled a few right-wing cages" with his CND involvement.
The festival was also growing at a fast rate, which alarmed some involved. Mr Eavis was also providing refuge for thousands of travellers who had been pushed out of Stonehenge.
Acts: The Cure, Madness, Simply Red.
Local villagers voted against the event taking place in a referendum, and the council refused the licence again.
But Mr Eavis had the decision overturned, and the festival went ahead.
The Stonehenge festival took place in exile at Glastonbury, causing friction because travellers resented paying and Mr Eavis said they took advantage of his hospitality.
Open drug-taking became an issue, and there was no festival the following year to allow Mr Eavis to take stock of the problems.
Acts: Van Morrisson, Elvis Costello, New Order.
"The sense of innocence had disappeared, to be replaced by edginess," one journalist wrote.
The Cure visited Worthy Farm in 1990
Riots between travellers and festival security teams broke out on the day after the festival, ending in 235 arrests and £50,000 of damage.
Mr Eavis said the travellers were looting the empty site, but the guards were accused of sparking the battles by attacking a group of travellers.
Police later said security teams had prepared petrol bombs and weapons. Ecstasy use and tent crime were also rife. The following festival was cancelled.
Acts: The Cure, The Happy Mondays, Ry Cooder.
Glastonbury had returned in 1992, bigger and better-organised.
An aerial view of 1994's festival
But things looked bleak for 1994's festival when the Pyramid Stage burnt down just ten days before the event. But a replacement was found, and the festival went ahead.
The first ever festival fatality was recorded when a man died of a drugs overdose, and five people were injured when a gunman opened fire.
£150,000 was donated to Greenpeace, £50,000 to Oxfam and £100,000 to local charities.
Acts: Bjork, Manic Street Preachers, Orbital.
Tickets sold out in record time as the festival attracted the most intense interest in its history.
Parts of the fence were torn down, meaning thousands of gatecrashers flooded in.
The sun shone for the summer of Britpop, and there was a legendary performance from Pulp after they stepped in to replace The Stone Roses at the last minute.
The dance tent also made its first appearance and £400,000 was raised for charity.
Acts: Oasis, Pulp, Prodigy.
The first of two consecutive mud-fests, which led to some festival-goers suffering from trench-foot.
1997 - and the living is muddy
By now, the site had its own daily newspaper, cash machines and covered 800 acres.
The bad weather led Eavis to spend £35,000 on improving drainage and laying 200 tons of wood chips to improve the site's roads in time for the following year's event.
Acts: Radiohead, Supergrass, Sting.
The council was reluctant to grant a licence after they estimated 100,000 people crashed the party in 2000.
Over the fence in 2000
The deaths of nine festival-goers in a crush in Denmark the same year had focused attention on safety.
But the licence was granted after Mr Eavis enlisted promoters Mean Fiddler - who staged the Reading and Leeds festivals - to look after security. Mr Eavis insisted he was still in overall control.
A £1m "super-fence" was erected and he gave a strong warning to ticketless fans to stay away - but some caused trouble in the local village of Pilton when they could not get into the site.
Acts: Rod Stewart, Coldplay, The Charlatans.
A year of consolidation at Worthy Farm, with tighter security restrictions leading to a largely trouble-free year.
Festival peace in 2003
Once again, Mendip District Council initially refused to give the festival a licence, because of concerns about crime in Pilton.
But Mr Eavis said on the Sunday of the festival: "Last night was the first night ever when I haven't had a phone call in the night from some irate neighbour."
Tickets sold out within 18 hours - and went on to be sold for hugely-inflated prices on the internet. This led organisers to restrict purchases for 2004's festival to two-per-person - which led to its own problems.
Acts: REM, Radiohead, Moby.