The winner of the four-way Knockout is revealed; the remaining Top 17 artists perform in front of Coaches Kelly Clarkson, John Legend, Blake Shelton and Gwen Stefani for their chance at a spot in the Top 9.

An array of "Voice" coaches past and present, some music superstars and many beloved artists from the "Voice" family perform holiday classics and popular modern favorites. Plus, Season 19 coaches Blake, Kelly, John and Gwen share some of their favorite holiday traditions and memories.