Carl Sagan Ft. Stephen Hawking "A Glorious Dawn"

This is the jam that is hitting right now.  If you have not heard it, it's obvious that you are not down with what is happening in the music world.  Carl Sagan the late bad ass astronomer, astrophysicist and author has released this joint 2Pac style.  With Stephen Hawking laying the breakdown, this is sure to be a hit.