Season 19 of 'Dancing With the Stars' aired its Halloween special on Monday night, presenting dance numbers worthy of trick or treating for the judges' scores.

Comedian Tommy Chong pulled out a surprise by dancing the Quickstep with professional dancer partner Petra Murgatoyd, and impressed the judges with his fast learning abilities and earned a total straight four-7 score of 28. The judges praised him for his effort, especially at age 76.

Sideline reporter, Erin Andrews, reveals that Chong is the oldest DWTS competitor to have made it this far in the history of the show.

Lea Thompson and partner Artem Chigvintsev clinched amazing scores with their version of the Tango. Judge Bruno Tinioli commented that the pair exuded "just the right touch of evil" with their choreography fit for the Halloween season. Thompson and her partner were given 8-8-9-9, for a total of 34 points.

Perhaps, the best performance of the night belonged to Bethany Mota and Derek Hough, who swayed their hips to their version of Paso Doble. Mota and Hough raked 10-9-10-10, resulting in the nearly perfect score of 39.

The pair has been impressive week-on-week, and it would not be a surprise if they strutted their way to the finale and took home the disco call for Dancing With The Stars season 19.