The video uses scenes from the George A Romero Film "Night of the Living Dead" and is dedicated to him in the video description where he is referred to as "Uncle George."
One of the filming locations is listed as Amazicon 7. Amazicon is a pop culture convention that the band performed at on two occasions.
If you watch carefully you'll see guitarist Jose wearing what looks like a werewolf costume and a tuxedo t-shirt. That's because one of the performances filmed was at a Halloween event.