You may have heard about this endeavour but if you haven't you can go here to find out more.
A fellow and his cohorts travelled all over the world with recording equipment, recording street musicians playing the same song, and then meshed it into one fantastic and inspiring tune. Just the feat of getting everyone to play it in the same key, in tune and in the same tempo is mind blowing. Very nice job. Music is, indeed, universal.
This is the first video they did:
and the new one is: