It's a terrifically fun video, no question about it. If you're curious about the story behind it, NPR's Planet Money did an episode on it:<p><a href="http://www.npr.org/blogs/money/2010/01/podcast_yo_planet_money_raps.html" rel="nofollow">http://www.npr.org/blogs/money/2010/01/podcast_yo_planet_mon...</a>