The stage is set for the second night of play-offs on The Voice. Tonight the artists of Coaches Christina Aguilera and CeeLo Green will take the stage, giving their utmost in a bid for the votes that will determine their future on the show. Carson Daly welcomes an overflow crowd to Stage 12, checks in with our coaches and then tosses to the night's first event: a group number. The 10 artists collaborate on the My Chemical Romance hit "Sing."