New Tonight 8/7c. Catch up on the season premiere online.
Xtina and CeeLo are back for Season 5 - and it's clear they've got something to prove. Like Adam Levine, they're united in their determination to knock Blake Shelton off the winning coach's perch. Big Country's pulled a hat trick over the last three seasons - and his colleagues are determined that it won't happen again. But before the battle for the best new singer gets underway, the superstar coaches make nice, teaming up for a four-part take on a rock classic that proves to be a barn-burner: "I Love Rock 'n' Roll."