Video: Slayer and Phil Anselmo Perform Pantera's "Fucking Hostile"

For his 45th birthday, former Pantera frontman Phil Anselmo joined Slayer onstage during their Heavy By the Sea Festival set in Athens, Greece, to cover the Pantera classic "Fucking Hostile."

Check out the video below. Happy belated Bday, Phil! (His birthday was June 30.)