VIDEO: Promo - Dule Hill and James Roday Tap Dance in PSYCH: THE MUSICAL

"PSYCH: The Musical," a two-hour special episode, will air Sunday, December 15, 2013. USA Network just unveiled a new promo, featuring Dule Hill and James Roday tap-dancing their hearts out. Watch it below!

In this long-awaited special featuring Santa Barbara's finest singing and dancing, Shawn (Roday) and Gus (Hill) dive into a world that's equal parts mystery and melody to track down an escaped playwright mad man, Z (Anthony Rapp, "Rent"), who, six years earlier, was deemed criminally insane after locking a critic in a back room of the theatre that he burnt to the ground. With little to Go On and a fear that Z will kill again, Shawn, Gus and the SBPD are forced to consult with the one person Z confided in while in the institution...a dangerous and familiar villain from Shawn's past, who guides them using cryptic clues to reveal what Z is planning next.

The musical was screened in July 2013 at Reading Cinemas in San Diego, where the cast arrived in Weinermobiles to greet fans and give a special introduction to the screening.