season 20 teams are locked and loaded!Coaches Blake Shelton, Kelly Clarkson, John Legend and Nick Jonas made their final chair turns, filling the last spots on their teams as the show heads into Battle Rounds next week, and towards a season 20 champion. Interestingly enough, there isn't a reigning champ on the coaches' panel this season, as Gwen Stefani won her first-ever title in season 19 with young crooner Carter Rubin.