Brace yourself as one of the notorious “Big Four,” as in Metallica, Slayer, Megadeath and Anthrax thrash metal legend notoriety, pummels you with lightning-fast riffs and solos. Never before to the Sturgis Rally, Anthrax joins the concert lineup like a fist to your eye, bringing the noise to the Sturgis Buffalo Chip Main Stage following coheadliners Black Label Society. Jump in and surrender to the madness Thursday, Aug. 12.