Serj Tankian from System of a Down joined Prophets of Rage at Rock am Ring to perform "Like a Stone" in honor of Chris Cornell. Follow us for more: https://Facebook.com/VictimsOfADownOfficial https://Instagram.com/VictimsOfADown https://Twitter.com/VictimsOfA_Down #SerjTankian #ChrisCornell #SystemOfADown