Anyone who has ever seen Glenn live knows that you could see him multiple times in a row and he sings it different each time. It's in the moment. So what does he have a different backing tape each night?
That would make him a damned good lip syncer!!
It doesn't matter what you do or how good it is, there is always someone just waiting to pop holes in it or denigrade it.
Doesn't surprise me though.
Maybe he records a different tape of the entire show each day while on tour then he simply plays and lip syncs it that night! Hey and maybe his bass playing is also recorded
They live amongst us and breathe the same air......................