Imagine bumping into one of your favorite celebrities? Because that's what happened to this guy... though he had no idea. And some videos are too good to not share.
Sam Snow, a cab driver, gets 4 passengers for a ride. They proceed to ask the Steelers fan who he thinks is the number one QB of all time. Without knowing that Elway was one of his passengers, he names him #1.
Check out the legendary moment below: