Speculation is (once again) mounting that Radiohead are about to release their new album after the band posted a new image online.

The band posted the picture to their Facebook page yesterday and it looks an awful lot like it could be an album cover:

 

They also announced a new batch of headline gigs on their forthcoming world tour later this year, including three nights in London - but no Irish date.

Thom Yorke and co. are already lined up for some European festivals over the summer, but said that the additional dates are the only headline dates they will play this year - leaving the possibility of an Irish festival date open.