Those who enter must post a link to a download of the shortened track on their Instagram page alongside instructions on how to enter.

"Complete Radiohead's series of Vignettes," the message reads. "Download the music on the link below and submit your video with the hashtag #RHVIGNETTE on Instagram, Twitter and Facebook. Radiohead will choose their favourite and post on Radiohead.com. Closing date July 30th (16)."