What a badass lineup.
Lamb of God - amazing.
Nine Inch Nails - one of my top 5 bands. still haven't seen them live.
Mastodon - saw them last summer, amazing, AMAZING band.
Slipknot - saw them at the same show as Mastodon, awesome show, great band
Machine Head - saw them at the same show as the above 2, had never heard them before, LOVED their show.
Pendulum - never heard of them lol
plus Metallica and LP? can't beat either one of their shows.