Rock star Gwen Stefani reclaims her red chair alongside fellow superstar coaches Kelly Clarkson, John Legend and Blake Shelton as they return for Season 19 of this four-time Emmy-winning music competition series. Among the new twists this season, in the Battle Rounds, the four artists that were saved by their individual coaches will not automatically advance in the competition. Instead, they must vie in the first Four-Way Knockout. Carson Daly returns as host.