Primus - Tommy The Cat

Les mo' f'in Claypool. I mean seriously. Primus sucks.

Primus - Over The Electric Grapevine

What do you do when you're the world's greatest bass player and you need a stand-in for your world class drummer on your upcoming tour? Why, you get the world's greatest drummer, of course. What a silly question. Haha. 

Of course these opinions are subjective, but if you were to ask most aficionados, the names Les Claypool and Danny Carey would, at the very least, be in the conversation as the best on their respective weapons of choice. Herb isn't far behind Mr. Carey in my books, but this is like a present to all those drummer geeks who always wondered "what if?" I envy all who get to witness this guaranteed awesomeness.