On the April 17th airing of KBS' 'Park Myung Soo's Radio Show', DJ Park Myung Soodiscussed the time he and former Girls' Generation member Jessica promoted their duet track "Naengmyun". 

He was talking about what type of naengmyun (cold noodles) he liked best when his PD surprised him by playing his 2009 duet with Jessica. The two were paired up for a music special of 'Infinity Challenge.

Park Myung Soo talked fondly about her by saying, "I wonder if Jessica's doing well. It was fun singing with her. One time, I made a mistake during the dance, but Jessica wasn't bothered by it and danced prettily. That image of her was really cute. That was already 6-7 years ago. Now that I look back, Jessica and I made a great song, and it was fun."