Ilgan Sports brought up IU during their interview with Jang Kiha, and asked, "Do your tastes in music match with IU's?" Jang Kiha answered, "It doesn't match perfectly, but there were times when I came to like a song that I've never given attention to because of IU's recommendation. I sometimes recommend (music) as well. We keep our musical connection like that, and I think we have a somewhat high understanding of music since we work in the field. We are also able to improve musically together that way."
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Next, Jang Kiha was asked about their age difference. Jang Kiha, who is 11 years older than IU, stated, "It doesn't mean that a couple will connect better if they are the same age. There are so many factors that lead to personality connection. Age is just one of the many factors so I don't really feel the age gap."