Steven Yeun of “The Walking Dead”  is best known for his role as Glenn Rhee on the popular TV series where his character struggles to survive in a world of zombies. It’s serious work as he always has to fight for his life. Hence, a team up with Conan O’Brien for an epic K-Pop music video is a refreshing break for the actor.

The duo did a cameo appearance in J.Y. Park’s “Fire,” Comicbook reported. The publication said that the video could possibly give Psy’s “Gangnam Style” a “run for its money.”

Comicbook also noted the appearances of Wonder Girls and TWICE, both popular K-Pop girl groups in South Korea. O’Brien and Yeun shot the music video in February.

Conan O’Brien was in South Korea to film a special episode for his show, NME reported. NME revealed that O’Brien wanted to do something significant in connection to one of the country’s biggest exports. His tweet about the music video recently revealed his anxiety about how it would be received.

Steven Yeun joined O’Brien in Korea as his guide, Soompi reported. O’Brien even described him as someone “who really knows the country.” They even went to the border between North and South Korea, The Hollywood Reporter revealed. However, their adventures turned to hilarity later on as Yeun failed to explain the food they ordered at a Korean restaurant.

This is not the first time Yeun and O’Brien teamed up for some fun. They visited a Korean spa in Los Angeles last year and Cinemablend noted how the pair stripped naked for that particular adventure. The publication also noted Yeun’s admission that getting naked in front of strangers was scarier than fighting zombies on “The Walking Dead.”

The cliffhanger ending of “The Walking Dead” made it tough to figure out if Glenn survived or not. Regardless of that career path, Yeun could have a possible fallback career as a comedian although there’s also the chance of more voice overs to come after “Voltron: Legendary Defender.” Yeun is the voice behind Keith, the Red Lion.

Watch Steven Yeun and Conan O’Brien in J.Y. Park’s “Fire” music video.