Weird Music Collaborations That You Like?

What seemingly strange music collaborations do you like?

I rediscovered the version of “Rock the Casbah” by the Clash with Ranking Roger on vocals (very distinct vocals from the voice of the English Beat AKA The Beat).  The bands toured together and thought this would be fun.  It floated around on bootlegs for years.  Just this week, The Beat and The Specials have some cool new releases, too.  –Sloane Spencer