You're bound to hear an anthemic Ac, Dc track ''Are You Ready?" or ''T.n.t.'' when you head to any sporting event, so step out ready to rock with this Ballpark adjustable hat from American Needle. Its all-black look calls to mind their iconic 1980 single ''Back in Black'' and the band's embroidered logo on the front panels lets other hard rock enthusiasts know that you too live life on The Razor's Edge. Pair this slick cap with your favorite band tee and leave no doubt that nothing gets you fired up like a charging Angus Young riff.