Comedy legend Bill Cosby was on Jimmy Fallon's show on Friday night, goofing around with The Roots about Philly neighborhoods. It was zippidy zippidy zoop a frazzle snazzle ropple stopple awesome time. Yeah, you should probably just watch this after a few bong hits. 

True story: One time -- way, way back in 2004 -- I saw Bill Cosby deliver a speech in Philly. It was one of the top 10 most amazing things I ever witnessed. If you ever get a chance to see him speak live, do it.