WATCH: ARIANA GRANDE Gives A Preview Of The Musical, "Hairspray Live!"

Ariana Grande and the cast of Hairspray Live! surprised their fans with a sneak peek of the musical, performing the finale number "You Can't Stop The Beat" in a Thanksgiving Day Parade. 

Clad in the signature beehive hair, green glittery dress and knee-high boots, Ariana (Penny Pingleton) and her best friend in the show Maddie Baillio (Tracy Turnblad) run the upbeat and vibrant act in the first half while Jennifer Hudson shines with her powerful voice the rest of the number.

Slated to air on December 7, the musical live adaptation also stars Kristin Chenoweth (Velma Von Tussle), Martin Short (Wilbur Turnblad), Harvey Fierstein (Edna Turnblad), Derek Hough (Corny Collins), Sean Hayes (Mr. Pinkie) and Rosie O'Donnell (gym teacher). 

Are you excited to watch Hairspray Live!? Tell us in the comments!