This was released as a double-A sided solo single by Radiohead frontman Thom Yorke along with "The Hollow Earth."
Yorke explained through Radiohead's online blog "Dead Air Space" that this song was co-written and played with Radiohead guitarist Jonny Greenwood. He explained that it is "a radical rework of an old tune that's been kicking around without a home since 2001."
"Feeling Pulled Apart By Horses" was the original title of the Radiohead track Reckoner, a song that eventually emerged in a much different form as a track on In Rainbows.
Radiohead's longtime collaborator Nigel Godrich produced this track.