September 10, 2015 Atlanta – Pentatonix’s Mitch Grassi performs on stage at Aaron’s Amphitheatre at Lakewood in Atlanta on Thursday, September 10, 2015. Pentatonix opened for Kelly Clarkson. JONATHAN PHILLIPS / SPECIAL
September 10, 2015 Atlanta – Pentatonix’s Mitch Grassi performs on stage at Aaron’s Amphitheatre at Lakewood in Atlanta on Thursday, September 10, 2015. Pentatonix opened for Kelly Clarkson. JONATHAN PHILLIPS / SPECIAL