definitly frank. He gets to in to the screaming chanting stuff and misses the change to "and her head has no room". He probably thought he would have to re do the whole thing. This is the reason why I think this version of the song isnt as good as the album version. After that mistake Frank never really gets back in to it.
I bet that really pisses him off when he listens back to it...if he ever does
The song as a whole is one of my favorites. Is there an excepted interpretation of it?