My friend and I were singing along with it, and I belt out, "Oh, no, a zombie-o," while he sang, "All in all is all we are". We both look at each other and he says, "you idiot, you got it wrong", and even though he's the Nirvana expert and I'm the casual fan, I said, "No, you do". So then I looked up hte lyrics and learned that he was right. Now whenever we run across each other he makes sure to sing, "Oh, no, a zombie-o"