Harmony is tricked into auditioning for the Holiday Chorus — directed by an ex-boyfriend. By Christmas Eve, they could be harmonizing in the key of love.
Unfortunately the movie Christmas in Harmony is not yet available on HBO Max.
| Directing | Rusty Cundieff | Director |
| Writing | Jessiline Berry | Writer |
| Production | Anthony Fankhauser | Co-Executive Producer |
| Production | Stan Spry | Executive Producer |
| Production | Eric Scott Woods | Executive Producer |
| Production | Kristopher Wynne | Line Producer |
| Camera | Eric Wycoff | Director of Photography |
| Art | Krystyna Loboda | Production Design |
| Costume & Make-Up | Robbie McKeithan | Costume Design |
| Costume & Make-Up | Elizabeth Paschall | Hair Department Head |
| Production | Tracy Kilpatrick | Casting |
| Production | Kim Stewart | Casting |
| Sound | Mikel Hurwitz | Music |
| Editing | Doug Noga | Editor |
