Photos: Rob Zombie, Five Finger Death Punch, Mastodon, and Amon Amarth Live at the Rockstar Energy Drink Mayhem Fest, Chicago

This summer’s Rockstar Energy Drink Mayhem Festival recently swept through Chicago. Photographer Brigette Sullivan of Outer Focus Photos was there to catch all the action on the main stage, which saw Amon Amarth, Mastodon, Five Finger Death Punch, and Rob Zombie throw down. Check out the photos she captured for us below–you can also follow her on Twitter and Facebook.


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