Moon Hee Joon opened up about how he enjoyed going on secret dates.

Yesterday's broadcast of KBS "Happy Together 3" featurd Moon Hee Joon along with Jung Jun Ha, and Park Ji Yoon. During the episode, Moon Hee Joon shared "I dated in secret during H.O.T days. So I dated in the car."

He surprised everyone as he shared that he customized his car to meet his girlfriend. "I once set up a project on the ceiling of my car. With window-tinting the car becomes a movie theater."