On the December 19 episode, Go Ara featured as a guest alongside Yoo Seung Ho. Before their guerilla date, they were asked to undergo a lie detector test, and the actress was asked, "Do you think that you're the most pretty among the SM Entertainment trio of beauties, Lee Yeon Hee, Girls' Generation's YoonA, and Go Ara?"

Go Ara was very confident in her answer, saying that she did think she was the most pretty of the three. However, the lie detector detected a lie and gave her a shock, surprising the actress.