The Big 4 was history in the making for the USA. All metal fans finally got their wishes as four of the biggest metal bands from the 80's shared the stage, Metallica, Slayer, Megadeth and Anthrax. Anthrax started day just right, playing all their hits from back in the day and even playing a new song. Megadeth played next, then Slayer and finally it was time for Metallica. Metallica truly put on an insane performance, playing all sorts of hits. I personally am not a huge fan of this music, but WOW, I would so see all these bands again. Check out the photos from this historic event.