‘The Voice’: Kelly Clarkson Cries and Ariana Grande Gets 'Choked Up' Over Emotional Performance

Kelly Clarkson and Ariana Grade got emotional during Monday night’s Knockouts on season 21 of ‘The Voice.’ Two singers from John Legend’s team, Samara Brown and Shadale, took the stage and impressed the coaches in a big way. ‘The Voice’ airs Mondays and Tuesdays at 8 p.m. PT/ET on NBC.