Florence + The MAChine were bumped up to headliners after the Foo Fighters cancelled their Friday night slot due to Dave Grohl's broken leg, and the reshuffling has left a gap in the line-up.

Glastonbury organisers have been working hard to keep the act's identity a secret, with Emily Eavis saying, "There is definitely something filling that gap but under no circumstances will it be announced," but a picture which leaked online appears to have given the game away.

The snap shows a mixing desk covered in bits of tape marked with the names of the day's acts, and a band named 'Albion' is marked in the penultimate slot ahead of Florence + The MAChine.

The name of the mystery act has sparked speculation it will be The Libertines playing on the fabled Pyramid stage, as the word Albion is frequently mentioned in the band's songs and even became the name of a track by Pete Doherty's band Babyshambles.