We all know that Jennifer Aniston and Courteney Cox are BFFs, that Jay-Z and Kanye West are tight and that Drew Barrymore and Cameron Diaz's friendship extends beyond Charlie's Angels.

But, here are a few that maybe aren't so obvious—we've graded them for you on a Surprise Factor scale as follows;

Surprise Factor Scale;

  1. Not at all surprising, tell us something we don't know
  2. A little surprising, but they're in the same business so not so much
  3. Hmm takes some thinking about but kinda cool
  4. Really?  Wow I would never have though that
  5. Say what???!!!  How do these two even know each other?  What do they have in common??