The band played this song live a few times. It's a cover of Carly Simon's Nobody Does it Better which was the theme song for the James Bond movie, The Spy Who Loved Me.
Radiohead have said in interviews, that they can't do covers. Well this song suggests otherwise. They do a great version of this song. I like it better than the original, and I very rarely do that with covers. Even for Radiohead. They played this live for MTV once, where Thom introduced it as the sexiest song that was ever written. A video of the show very very rarely airs on TV, and you can read about it here.