The singers will join mainstays Blake Shelton and Adam Levine as Gwen Stefani makes an exit after only one season.
With season 7 of "The Voice" underway, plans for season 8 have already been made.
03:40 5 things the Thunder need to fix after their first-round loss to the Rockets17
13:49 Dale Earnhardt Jr. retiring at end of 2017 NASCAR season29
18:00 Bill O'Reilly returning to podcast Monday30
15:12 Clippers say Blake Griffin will miss the rest of the playoffs with a toe injury16