Chris Farley's 'Fat Guy In A Little Coat' Origin Story Is Finally Explained By David Spade

Ever wondered where that magic little song was born? Well, you're in luck!

David Spade spilled the beans with Conan this week and he filled us in on how Chris Farley started doing the famous bit from Tommy Boy.

Watch David Spade as he reveals the most-sought secret of all time on the video below.