I'm pretty sure that John is busy eating and praying to aliens from another planet to be on that show. Besides, he can't act his way out of a paper bag, how can he teach others how to act, sing and dance. The only problem that I would have with this, is the fact that the people at home get to pick the winners. So, the winners could kinda suck but be very popular with a majority of the country that may never see them perform it. Just like American Idol. The best don't always win. That's just my opinion on it.
Daniel