I need song lyrics

[Doogied]

Does anyone remember the Muppets (I do believe Rolf is the Muppet in question) performing a song called "The Entertainer"? My memory is very vague but I am thinking about Milton Berle in association with this song as well. Can anyone tell me the lyrics? I have been searching on Google for over an hour and I give up..... Any help would be great...I know the tune was written by Scott Joplin but the words are no-where to be found. Thanks!