Either Screamin' Jay or Arthur Brown (see: Fire), I would think? Then again Chuck did really bring the showmanship. The TV series Metal Evolution has a nice little episode on shock rock if you find the topic interesting. With that said, I'm not big on eulogizing so I'll steal a friend's Facebook post:
Now free of his corporeal confines, Ghost Chuck Berry can watch you pee wherever he wants. Roll Over Beethoven.
Now free of his corporeal confines, Ghost Chuck Berry can watch you pee wherever he wants. Roll Over Beethoven.