Home Concerts Ozzy Osbourne, Slayer, Stone Sour, Lamb of God + More Bring Punishing End to Chicago Open Air 2017 on Day 3 [Photos] Ozzy Osbourne, Slayer, Stone Sour, Lamb of God + More Bring Punishing End to Chicago Open Air 2017 on Day 3 [Photos] planetsixstring July 19, 2017 comments off Tweet on Twitter Share on Facebook Google+ Pinterest See all the action from the final day of Chicago Open Air 2017! Continue reading…