Rockstar Energy Drink Mayhem Festival 2014 Lineup Riz April 3, 2014 0 Not impressed. Rockstar Energy Drink Mayhem Festival 2014 Lineup Related PostsThe World Needs Stoned LeadersGet to Know Your GrandParents While You Still CanHeavy MTL 2014 Lineup AnnouncedStations of the Cross – Crown Your Mind in Thorns