Steve Berlin, producer & member of Los Lobos has an article on JamBase, all good stuff that gets really interesting on page 3 as he relates his experiences working with Paul Simon, here it gets ugly fast -
I have plenty of recollections of working on that one [Graceland]. I don't know if you heard the stories, but it was not a pleasant deal for us. I mean he [Simon] quite literally – and in no way do I exaggerate when I say – he stole the songs from us... The guy was clueless... He's the world's biggest prick, basically.
Story via Lefsetz.