Will Smith took a page out of the Gilligan's Island playbook when he wrote the theme to The Fresh Prince of Bel-Air by explaining the show's entire backstory in extreme detail. The original song stretches it to two minutes, but they cut that down after just a few episodes. Watch this video to see the original. You can finally see Smith packing his bags, flying on the plane and pulling into the Bel-Air mansion. Didn't you always wonder what he did right before he whistled for the cab? Now you know.