Former Voice winners Cassadee Pope, Chloe Kohanski, Chris Blue and Jordan Smith return to help Coaches Kelly Clarkson, Alicia Keys, Adam Levine and Blake Shelton get their teams ready for the knockout rounds.

Past Voice winners Cassadee Pope, Chloe Kohanski, Chris Blue and Jordan Smith return to help Coaches Kelly Clarkson, Alicia Keys, Adam Levine and Blake Shelton get their teams ready for the third night of knockouts.