A private joke in a public forum

I can't remember if I have put this into print before or not, but it is a concept I have been kicking around for a while. The problem is, it is a TERRIBLE joke in print, but I believe it is pretty funny when spoken correctly.
It would never work to start off the show, I would have to haev people with me to take a chance like this one. There should have been a couple lead-in jokes having to do with misunderstandings, and then it would go something like this;

"I think another thing that is poorly understood in this country is karaoke. (wait for groan) For so long, the only way people could sing their favorite songs in public was in their car to the radio. For some reason, taking your shower on your way to work is still frowned on. But the concept of karaoke is really great. You get to sing along with your favorite songs in public. It is the execution that makes us hate it so much.
There is just something repulsive about listening to someone with the voice of a bullfrog wrecking great songs. Do we really want to listen to the singing of someone who makes Elmer Fudd sound good?

*hit the cheesy, fairly inaccurate Elmer Fudd voice* "Bwame it on the wain that was fawwing fawwing, bwame it on the staws that shine at night...whatever you do, don't put the bwame on you, bwame it on the wain, yah yah"

naturally, the joke needs a finish. But since I keep forgetting it, I thought I should pop this up as a reminder to myself.