Paul McCartney apparently asked Thom Yorke to do some work with him. Thom said 'no':
“My daughter 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.”
Yes, that's true, that, Paul.
Here's Thom not feeling happy working with UNKLE:
Here's Mr. Yorke clearly uncomfortably collaborating with Bjork:
Thom Yorke obviously wasn't happy working with Drugstore, either:
There was no frisson of joy when Thom worked with REM:
Perhaps, Paul, it could just be that he didn't want to work with, well... you?