After Monday's announcement confirming U2 as the first headliner for the 2010 Glastonbury Festival, some music industry commentators have been quick to suggest the show could be a tough one for the Irish megastars.

With their experience of massive venues and crowds, the undertaking is unlikely to be daunting for the band, but their lack of experience of festival crowds could be their undoing, some have warned.

Nicola Slade, editor of the music industry newsletter Record of the Day told the Guardian that she thinks the band's show at the 40th anniversary of the festival could come across as "weird."

"They are not going to be able to do their usual U2 spectacular that people have come to expect from them," Slade said. "U2 are a divisive band -- you either love them or you hate them. I think it will be a difficult audience because it is not their core contingent."

The paper also speculated about the production that U2 would adopt for the prestigious date, given that their current 360 tour is designed specifically for an in-the-round performance, something that would be impossible from Glastonbury's iconic Pyramid Stage. They suggest that the band may have to adopt an uncharacteristically "stripped-down" show.

The band's manager Paul McGuinness told the Guardian the band's approach to their stage shows was one of the reasons that they had previously shied away from festivals. "I think they have stayed clear of them because they tend to do a big, monster product which doesn't necessarily fit into a festival context," he said.

McGuinness was quick to dismiss any doubts the band had about doing the show at the festival, an event he considered to be an "English institution." He said the band -- who will play a mixture of material from their entire career – are treating the show "like Wimbledon or the Cup Final."

U2's Glastonbury appearance will be their only UK date in 2010 -- so far.