This isn’t a song or anything either, but I think it’s really cool. Bobby McFerrin (Don’t Worry, Be Happy dude) shows how the pentatonic scale is hardwired in humans. He was brought in to the TED conference (short for Technology, Entertainment, Design, and motto: “ideas worth sharing”), and did his thing between some talks on Neurology.
Unfortunately, no matter how hard he tries, Bobby will always be the “Dont Worry, Be Happy” guy. At least almost everyone thinks Bob Marley did that song anyway.