Mac Davis Joins The Muppets for Hilarious ‘It’s Hard to be Humble’ [VIDEO]

To this day, you can still find people singing along to Mac Davis' 1980 hit, "It's Hard to be Humble."  You can walk into most any pub when they have some guy doing a single, and you can bet somebody will request it. Did you know he once cranked out that tune accompanied by the Muppets?

What is more surprising than anything is the fact that Mac Davis actually kept the original lyrics intact when he sang "He must be a HELL of a pig." Jim Morrison and Mick Jagger couldn't get away with that stuff, even on Prime Time. Hard to believe Mac Davis could pull it off on something like The Muppet Show.