On the February 16 episode of 'Happy Together 3', Song Eun Yi, who's known to be Yoo Jae Suk's best friend, appeared as a guest. During the talk, she surprised the MCs and fellow guests as she said, "In the past, Yoo Jae Suk and I had the opening to a show with a kiss. We performed together about 80 times so that means we kissed 80 times."
She continued, "At the time, our roles were husband and wife. We practiced the scenes where I suddenly kiss him. Yoo Jae Suk got really surprised several times and accidentally opened his mouth."