The blind auditions wrap up, as each coach fights for the best artists to complete their teams of 12. The second hour begins with the battle rounds. Christina Aguilera teams up with Patti Labelle, Adam Levine with Tori Kelly, Blake Shelton with Gwen ... (more)Stefani, and Pharrell Williams with Sean “Diddy” Combs aka Puff Daddy. In this phase, the coaches pit two of their own team members against each other in a dueling duet. After the vocal face-off, each coach must choose which artist from their team is the strongest, and has the option of stealing losing artists from an opposing coach. Each coach has two steals during the battle rounds where their artists will proceed to the knockout rounds.