Another year, another Glastonbury — and another fresh round of what-ifs and maybes for the festival rumour mill.

This year the most-whispered tale involves two of the 2010 festival’s headliners – or, rather, one of the headliners and a band who were supposed to be topping the bill on the Pyramid Stage.

Saturday’s headliners Muse had hinted they were planning something special for their headline slot. On Friday, BBC 6 Music reported that the band might be joined by U2’s guitarist the Edge for their slot.

U2, of course, were supposed to be headlining the festival on Friday night but had to pull out after Bono underwent surgery, leading them to pull a series of dates on their world tour.

Festival organiser Michael Eavis had been asked by the station if the rumours were true, and did not deny the story – though he did not confirm it either.

Whether Matt Bellamy and company are joined by the veteran guitar great, only a time machine or patience will tell. Stay tuned.