WAUSAU — A true Wisconsin Christmas tradition, the John Altenburgh Christmas Extravaganza has long been the hottest ticket in town at the Grand Theater in Wausau.

At 10 a.m. today, Dec. 12, Wisconsin Public Radio’s “Route 51” host Shereen Siewert welcomes Altenburgh, along with fellow band members Mitch Viegut and Paula Hall, for a sneak preview of this year’s show.

Along with performing their favorite holiday tunes, these three musicians will talk about the history of the show, the bonds of friendship that keep them together, and how they work to keep the show fresh for audiences year after year.

“Route 51” is heard Thursdays at 10 a.m. on The Ideas Network stations 101.3 & 91.9/Wausau, AM 930/Auburndale-Stevens Point, 99.1/Stevens Point, 100.9/Marshfield, 90.3/Park Falls, 89.1/Adams-Wisconsin Rapids, and 89.9/Rhinelander-Eagle River. It is re-broadcast Fridays at 7 p.m. on 90.9/Wausau. Program archives are available at wpr.org/route51.