Few genres on this planet can get you pumped like heavy metal, which is why it's almost always the first thing most of us reach for when hitting the tracks for a run or preparing to lift some weights at the gym. Kris Barras, the MMA fighter-turned-frontman for British hard rockers Kris Barras Band, knows a thing or two about metal and working out, so we got the man himself to compile his ultimate gym playlist. Turn it up, and get ready to break a sweat.
