[youtube width=”500″ height=”344″]http://youtu.be/faM8aZb7fd8[/youtube]

Philip Anselmo and Kerry King have taken part in numerous “Metal Masters” sessions together. And last night (July 1), Slayer and the Pantera/Down singer joined forces once again. To celebrate his 45^th birthday, Anselmo joined Slayer onstage during their set at the Heavy By The Sea festival in Athens, Greece to perform Pantera’s “Fucking Hostile.” Unsurprisingly, fan filmed footage of this heavy performance has made its way online, and can be seen above. If that’s not enough to make you stop reading and watch right now, then we don’t know what will.