Watch Dave Grohl Perform 'Ace of Spades' With Members of Slayer, Pantera, and Metallica

Dimebash, the annual celebration of the late Pantera guitarist Dimebag Darrell, went down at Lucky Strike Live in Los Angeles last night, and in addition to honoring the groove metal pioneer, an all-star cast of musicians joined forces to mark the passing of another great -- Motörhead's Lemmy. Surprise guest Dave Grohl got on stage with Pantera's singer…