All this time I thought it was a John Cale song! (Granted I'd never checked)

Edit: Huh, he did produce it, played on the original recording, and then released his cover before the original: https://en.wikipedia.org/wiki/Pablo_Picasso_(song)

It was not, I didn't know about that song.

I put a list of link about Picasso elsewhere in this thread: https://news.ycombinator.com/item?id=29292805