I came to this song by way of Shrek. You can buy the soundtrack but for some reason, they put a version by Rufus Wainright on it, not John Cale. You can also find Cale singing it (Music from Scrubs) but it isn’t THIS version. AFAICT John Cale’s version from the film is not available for purchase in MP3 or CD form.
This reminds me of Elton covering Lennon’s “Lucy in the Sky with Diamonds,” but I’m too lazy to look up which sold more. The girl with colitis goes by…