VIDEO: 'Book of Mormon' Stars Josh Gad & Rory O'Malley Reunite on 1600 PENN

On last night's episode of NBC's 1600 Penn titled 'Skip the Tour', series star Josh Gad bumps into his Book of Mormon co-star, Rory O'Malley who appears on the episode as a rule-abiding White House tour guide. Check out the hilarity below!

About 1600 PENN:

On 1600 Penn, the Gilchrists are an American family that deals with ordinary problems under extraordinary circumstances. Sure, we all make mistakes, but theirs just happen to make the evening news. They're loving, fun and a little crazy. In other words, just like everybody else. With one exception: they live in a very special house -- the White House.

President Dale Gilchrist (Bill Pullman, "Independence Day," "While You Were Sleeping") is trying to perform the important duties of his job while also doing right by his family -- not an easy task when his place of work just happens to be the Oval Office. First Son Skip (Josh Gad, star of Broadway sensation "The Book of Mormon," "21") is one of the administration's biggest liabilities and his clumsy attempts to earn his father's respect often go awry. Yet, despite his many well-intentioned yet misguided efforts, he is the glue that holds this family together.

Stepmom Emily (Jenna Elfman, "Dharma and Greg," "Accidentally on Purpose") is desperately trying to win over the affections of the kids -- including overachieving daughter Becca (Martha MacIsaac, "Superbad"), who is facing her first lapse of judgment, and Xander (Benjamin Stockham, "Sons of Tucson") and Marigold (Amara Miller, "The Descendants") -- but the brood somehow manages to stay one step ahead of Emily.

Watch 1600 Penn Thursdays 9:30/8:30 c on NBC.

VIDEO: 'Book of Mormon' Stars Josh Gad & Rory O'Malley Reunite on 1600 PENN