There might be nothing funnier than watching Conan O'Brien and The Walking Dead's Steven Yeun experience a Korean spa. The famous talk show host and actor recently braved the Wi Spa in Los Angeles and filmed their entire experience. 

The viral clip that has nearly four million views, shows the duo going through the various services of the spa, most of the time without clothes. Conan and Yeun sit in extra hot saunas, dive in cold baths, get aggressively scrubbed and lay in a bed of clay beads. 

But the best parts of the clip are their interactions with the spa's clientele and staff. I don't want to spoil too much because it's sooooo funny, but let's just say a few men and women at the spa are equal parts scared and interested in Conan.