Kirk “The ball-to-little-girl’s-face kicker” Hammett, Metallica‘s guitarist, joined Anthrax on stage in San Francisco.
It happened last night and he did guest vocals (huh?) on “I Am The Law.”
Then he remembered he sort of plays guitar, and played “Whiplash.”
The audio from the clip above is awful. There’s another clip after the jump, audio is just as bad. So yeah, don’t watch it.