Get ready to hear some beautiful harmonies because the Pentatonix NBC Christmas special arrives Monday night.

Titled “Pentatonix: A Not So Silent Night,” this will be the group’s third holiday special on the network, and fans can expect more of everything they’ve come to love from these broadcasts: music, fun, festive decorations and a few celebrity friends.

Beginning at 10 p.m. EST, the show follows as “Pentatonix embarks on an unforgettable journey throughout Las Vegas, making stops along the legendary Strip including the iconic Caesars Palace and the stunning Eiffel Tower at Paris Las Vegas,” the synopsis reveals.

ptx christmas special 2018
Pentatonix and Kelly Clarkson team up in this new NBC Christmas special. David Becker/NBC

Artists Kelly Clarkson, the Backstreet Boys and Maren Morris will join in on the Christmas fun, as will master illusionists Penn & Teller and more.

NBC will air another showing of the Christmas special on Dec. 19 at 10 p.m. EST, for those who missed it the first time around, or for those who just want to watch it again.

Pentatonix, RCA Records and Ken Ehrlich of AEG Ehrlich Ventures LLC produced “Pentatonix: A Not So Silent Night.”

See all the musical fun when the 2018 Pentatonix Christmas special debuts on NBC on Monday at 10 p.m. EST.