Every music fan knows trying to predict anything about a Radiohead album is a fairly difficult task. But they'll also know that it's the funnest part - the clues, the jigsaw pieces, the false starts and the genius conspiracy theories that appear in the weeks running up to the big release.

With that in mind, we've scoured every Radiohead forum, potential collaborator and limited company document and put together everything you need to know about their new album.

When's it going to be released?

Going against the grain of New Music Friday, Radiohead will release their new album digitally at 7pm on Sunday, May 8.

They'll follow it up with a physical release on June 17 (ok, so that one is a Friday.)

Who have Radiohead been working with?

Unless we're in for a massive shake up, Nigel Godrich is likely to resume his role as Radiohead's "sixth member". He's produced every single one of the band's albums since OK Computer, as well as both of Thom Yorke's solo albums.

Stanley Donwood is also likely to make an appearance, with the artist helming every Radiohead album cover since 1995's The Bends.

Then there's Robert Ziegler, the conductor who worked on Radiohead's King of Limbs. He posted some sneaky pictures of Radiohead in the studio with a string band back in September. Then again, that could equally have been for Radiohead's discarded Bond theme for Spectre that we heard over Christmas.

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What's it going to sound like?

Radiohead have given us next to nothing to go on here. We can speculate about a full-blown orchestral sound conducted by Robert Ziegler, but like we said, that could all have been James Bond-shaped smoke and mirrors.

Jonny Greenwood did say the band have "certainly changed [their] method" for their ninth album, leaving things wide open for interpretation. A different method doesn't necessarily mean a different sound... but it doesn't rule it out either. "We're kind of limiting ourselves; working in limits. So we'll see what happens. It's like we're trying to use very old and very new technology together to see what happens," he further teased.

In the meantime, Thom Yorke performed two new tracks during the Pathway To Paris climate change concert, one of which ('Silent Spring') we can safely assume is a Radiohead track because he claimed, "This is Jonny's bit" halfway through. Those songs fittingly contained lyrics that seem to be concerned with the environment if we're being literal. Yorke sings about "the moon smiling" and "a river running dry".

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Are there any song titles?

We know that Radiohead are reworking their 1996 track 'Lift' for the album because, well, Jonny Greenwood said so.

Thom Yorke told an interviewer back in 2009 that his favourite Radiohead track is one he was currently working on. That track was called 'Dawn Chorus'. Given the creation of 'Dawn Chorus LLP' we could be about to hear Radiohead's finest work.

Then there are those two tracks Yorke performed in Paris, 'Silent Spring' and 'Desert Island Disk', both of which remain possibilities.

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More recently, one Radiohead fan posted an image on Twitter of a flyer he received from the band. The flyer says: "Sing the song of the sixpence that goes BURN THE WITCH." Underneath it says: "We know where you live."

That witch-burning wasn't a dead end after all, and on May 3 Radiohead premiered 'Burn The Witch', the first single from the new album.

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A few days later on May 6, the band premiered another song 'Daydreaming' complete with a music video courtesy of There Will Be Blood director Paul Thomas Anderson.

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Are they going to tour the album?

Yes! And it won't just be the odd festival, either. Radiohead have announced three shows at London's Roundhouse on May 26, 27 and 28 as well as gigs in Paris and Amsterdam.

They'll resume in July with two nights at New York's Madison Square Garden before moving to Los Angeles's Shrine Auditorium on August 4 and 8 and Mexico's Palacio de los Deportes on October 3 and 4.

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