On the November 14th episode of KBS 2TV show Champagne, Boom revealed his "ideal girl." Out of all the celebrities in the industry right now, Boom said that former After School member Soyoung was the closest to his "ideal girl." Out of 16 other females Boom chose Soyoung, saying: "Ever since her debut, it's always been her." He also added how he admires how she manages her current life in the media along with her studies. When asked "While you're in the military and you feel a bit down, let's say you have a photo of someone in their pajamas to comfort you; who would you want the star of this picture to be?" Boom's answer was yet again Soyoung. Boom concluded by saying that, "I hope she visits me while I'm in the military."