‘The Simpsons’ Christmas Special to Feature Musical Guests Pentatonix & Patti LaBelle: Watch the Trailer

The upcoming Simpsons holiday special, O C’mon All Ye Faithful, is getting a musical lift from some of music’s most experienced Christmas carolers: Pentatonix and Patti LaBelle.

As announced Wednesday (Dec. 11), the a cappella group and “On My Own” singer will deliver musical performances in the double episode premiering Dec. 17 on Disney+, exactly 35 years after the original Simpsons holiday special aired in 1989. The streaming platform also shared a trailer for the project, showing Homer wreaking havoc on Springfield after famed mentalist Derren Brown hypnotizes him into thinking he’s Santa Claus.

“Celebrate the holidays with a double-episode holiday special,” the teaser reads in between shots of the Simpsons patriarch riding on a parade float with a white beard, getting tased by police on the street and crashing his homemade sleigh into Moe’s Tavern.

The trailer doesn’t show Pentatonix — which is comprised of Scott Hoying, Mitch Grassi, Kirstin Maldonado, Matt Sallee and Kevin Olusola — or LaBelle, nor has Disney+ revealed details about their performances. Both acts, however, are known for their Christmas music, with the vocal group’s A Pentatonix Christmas spending two weeks atop the Billboard 200 in 2016 and the soloist having two entries on Billboard‘s Top Holiday Albums chart with 1990’s This Christmas and 2007’s Miss Patti’s Christmas.

Pentatonix has also dropped two new holiday singles in 2024: “Meet Me Next Christmas,” which arrived in November, and “Christmastime Is Finally Here” with A Great Big World, released Dec. 6.

Watch the trailer for The Simpsons: O C’mon All Ye Faithful above.