Who the hell is Tyler Perry?

I suppose I could wiki him and find out what the he's done, but this will go smoother and hopefully illustrate my point if I don't. As far as I can tell, he's a dude dressed in drag on a show on the WB... or CW or whatever. How does that mean he gets his name tacked onto every show on the channel? It probably goes without saying that being a semi-nerdy white guy over 30, i'm not in his demographic. The only bits of his shows i've seen are the commercials with people yelling things like "No he didn't!" and "Don't go there!" which I imagine must be funny to someone since the show's still on tv.

All i'm saying is that his publicist is doing great job because I can't get through a Seinfeld rerun without being bashed over the head with this guy's name a thousand times.