The Foo Fighters have supposedly confirmed their upcoming appearance at Glastonbury after the bill included mysterious, unknown band, The ChurnUps, in their lineup.

Yesterday, the rock band took to Twitter, uploading a photo of a handwritten note penned by the group's frontman, Dave Grohl, which included a discreet reference to a secret group that will take over the Pyramid Stage on Friday, June 23rd.

“Hey. It’s been a while. Now that we’ve returned from our first run of shows, I felt compelled to reach out and thank you all for being there for us,” the note began.

“Every night, when I see you singing, it makes me sing harder. When I see you screaming, it makes me scream louder. When I see your tears, it brings me to tears. And when I see your joy, it brings me joy. But, I see you... and it feels good to see you, churning up these emotions together,” the message continued.

Thank You. pic.twitter.com/ZjhC9wls0r

— Foo Fighters (@foofighters) June 6, 2023

“See you soon,” the message ended, signed by guitarist, Grohl.

Sleuth fans took no time in responding to the recently-uploaded post, convinced the “churning up” reference was hinting at an upcoming performance at the Worthy Farms festival.

Replies included one Twitter user commenting, “See you at Glastonbury”.

As this year’s headliners, the Arctic Monkeys, Guns N’ Roses and Elton John, were announced last week, a new addition by the name off The ChurnUps was also included on the Somerset bill.

With no digital footprint of the band existing online, many took to believing the band was a cover for a surprise special guest, with popular guesses including Pulp with fans theorising, by churning something- the result is pulp.

Glastonbury is set to take place from Wednesday, June 21st to Sunday, June 25th.