Lena Park (Park Jung Hyun) (36) revealed how she had come to feature on Psy's (34) 6th album.

She had featured on the song "How Would It Have Been", but she confessed that at first she didn't even want to. When asked, "Were you forced to feature for him even if you didn't want to?" on the December 20th episode of 'Happy Together 3', she answered that she had.

She started her story by saying, "I'm happy that Psy is doing so well. But usually, I only feature for artists that I'm really close with. I didn't know who Psy was at all. One day, he called me and said, 'Noona, it's Psy'. I didn't know who it was. I thought it was the Korean portal Cyworld at first. He told me that he was a fan of mine and wanted to eat together, he also wanted to write me a song. I was burdened." Yoon Jong Shin confirmed that Lena Park took the process of getting close seriously.

Lena Park continued, "He called me later, and asked me to feature for him. But I had my tour at the time, so I refused. I thought that was the end of it, but he kept calling so I finally accepted." In the end, she also revealed that he gave her a laptop as a present like Psy had for Sung Shi Kyung.