Mellotronists

As a matter of fact, the little-known truth is that it's only one guy.  He travels the world 
and goes to every band performance he finds and shouts "Free Bird" at the top of his 
lungs in a Tourette's-esque paroxysm.  He also shouts "rock and fuckin' roll" a lot.  I 
heard that he ate bad acid at a Black Oak Arkansas show back in the Seventies and has 
never been the same.