The (almost) full lineup for Glastonbury has been revealed, with a mysterious inclusion—a band that doesn’t seem to exist, The ChurnUps—sparking rumors of a surprise guest.

On Friday, 6/23, The ChurnUps will play the Pyramid Stage between 6:15pm and 7:30pm. Speculators are speculating that the band could actually be Blur, Pulp or even Foo Fighters.

Queens of the Stone Age, Rick Astley, Skepta and Tom Grennan are among the other acts on the bill. Caroline Polacheck, Digga D, Dermot Kennedy and the Chemical Brothers are more recent additions. They join previously announced headliners Arctic Monkeys, Guns N’ Roses and Elton John.

There are two slots yet to be filled on Friday and Saturday.

The Glastonbury Festival of Contemporary Performing Arts will take place 6/21-25 at Worthy Farm, Pilton, Somerset, England. For more information, click here.