A message posted on U2's official website yesterday (Sunday) gives perhaps the biggest hint that the band are set to play Glastonbury Festival 2011.
The group, who according to organiser Michael Eavis have been approached to play, have space on their tour calendar over the festival weekend.
The message said: “Tickets for Glastonbury 2011 go on sale this weekend. Will U2 fans finally see 'Glastonbury' at Glasto?
“Glastonbury's Michael Eavis has said he'd like U2 to play in 2011 after they missed their slot at Worthy Farm this past June.
“Looking at the tour dates – there is a gap in the band's schedule ahead of the East Lansing show on June 26th which would make the Friday night a possibility.
“The most Paul McGuinness would say was, 'We're certainly excited about our plans for next year. Watch this space!'”
Eavis also said last week that fans can expect the first bands to be announced once the festival has sold out, which it did in four hours yesterday, but issues with the ticketing website due to high demand prompted organisers to apologise.
A message on the official Glastonbury website said: “We're very sorry to those of you who didn't get tickets, and acknowledge there were some issues with the website/phoneline due to the sheer volume of people trying to get through. We wish there was a way to fit everyone in who wanted to come.
“Thanks for all your support. We're looking forward to seeing those of you who got tickets next June.”
Those who managed to secure tickets to Glastonbury Festival 2011, which takes place at Worthy Farm in Somerset from 22-26 June, should have received a confirmation email already, but SeeTickets are offering a ticket tracker here.
A number of resale passes should go on sale around April or May next year.
National Express have been unveiled as one of the official coach partners of the Glastonbury Festival.
More festival-goers are travelling by coach to events because of its green credentials, it saves money on car parking and the coach drops ticket-holders closer to the campsite than any other mode of transport.
Coach tickets are expected to go on sale today (Monday 4 October).
Click here for more details on coaches to Glastonbury Festival.