Sir Paul McCartney was desperate to collaborate with Thom Yorke - but the Radiohead star turned him down. The former Beatle claims Yorke rejected an offer to work on an album with him - because he wants to solely concentrate on his band. MCCartney says, "My daughter (Stella) was putting an album together and she put us in touch. "I asked Thom to do a duet, but he said he couldn't because he only felt happy working on his own and Radiohead's material." MCCartney's 2005 album, Chaos And Creation In The Backyard, was produced by long-time Radiohead collaborator Nigel Godrich.