Tickets for this year's Glastonbury Festival have sold out in just 24 hours.
The festival runs from Friday 27 to Sunday 29 June
More than 100,000 tickets, costing £105 each, were taken up in record time after
going on sale at 0900 BST on Monday.
But the huge demand has also prompted some people to offer their tickets for up to £500 on the internet.
Festival founder Michael Eavis has condemned the internet sales and says he will cancel any such tickets.
He said: "We have been told about a number of tickets being sold on e-bay for £500 each, which is worrying.
Those tickets will not be issued - the people will not be able to sell them
"If the tickets are on for £500 a day after selling out, imagine what they will go up to in two weeks.
"What we have decided is to cancel those tickets - they will not be issued, so the people will not be able to sell them.
"We are pleased to have sold out in a way, but also sad, because it means people who have been coming to the festival for many years have not been able to get tickets."
A spokesperson for Shepton Mallet tourist office, which is one of the outlets selling the tickets, said: "It is a bit unusual to sell out so quickly but everyone knows what a fantastic event it is.
"We have had people from all over the country ringing up desperate for tickets."
Last year, tickets took several months to sell out.
The music festival was initially refused a licence because of concerns about crime and environmental damage.
Organisers, who have confirmed REM and Radiohead will play, promised to improve security on the site and the local area - and the application was approved.
Another condition of approving the licence was that organisers restricted the number of tickets to 112,500.
The festival runs from Friday 27 to Sunday 29 June, with the gates opening at 0900 BST on 25 Wednesday.