Apparently, several weeks ago at a bar Nick Digilio, who has a wgn radio show, frequents; the Bertha Butt Boogie is in the jukebox and someone played it just as the Cubs rallied to come from behind and win. Since then it's been a Cubs fight song at that bar Nick hangs out at, and he's mentioned this several time in the last few weeks on his radio show as well as playing the song. Now that other listeners to his show have written to encourage him, he's starting a crusade to turn it into an official Cubs fight song.
Ah, 70's funk! lol I'm not sure I'm completely behind Nick D's crusade, and it doesn't really have anything to do with the Cubs or even baseball, but it is silly fun.