WATCH: The Voice Judges Perform ‘Pour Some Sugar On Me’ With Def Leppard

To kick off Part 1 of the finale for The Voice, each of the judges rocked out, singing “Pour Some Sugar On Me” with members of Def Leppard. Cee Lo Green, Christina Aguilera, Blake Shelton, and Adam Levine all joined together for a killer performance of the classic rock hit. After you enjoy tonight’s performance video, check out the dress rehearsal in the below video.