Steven Yeun, star of AMC’s “The Walking Dead,” joined Conan O’Brien for a trip to the Wi Spa recently, and relaxation has never looked so painful. On their journey, the two got naked, took a dip in extremely cold water and went through a body scrub that had them screaming louder than if actual zombies were attacking.

The whole trip is summed up in a beautiful song at the end, but we’re guessing O’Brien opts to go somewhere safe like Taco Bell for his next adventure. If anything, it’s clear that “The Walking Dead” has nothing on a Korean spa.

“Conan” airs weeknights at 11:00 p.m. ET on TBS.