Actually says that it was the loudest crowd, not the loudest band. Though, you might have gotten the wrong idea by the sheer number of people running away from the music, covering their ears and crying.
I seriously want to jam on MmmmBop in the new cover band I'm putting together. I figure those screaming 12-year-olds ought to be bar-hopping 30-year-olds about now. It will be awesome.