Luna, Coach John Legend's daughter, made a split-second appearance at the top of the episode, hanging backstage with her dad.

Adam Levine is finally getting back into the groove of The Voice and giving Kelsea Ballerini a run for her money.

The Voice Kids is back for Christmas, and there is an exciting new coach this series! Ronan Keating joins Danny Jones, Pixie Lott and will.i.am as the blind auditions begin.