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Both members of Dynamic Duo were guests on the July 11 episode of KBS Radio Cool FM's 'Hong Jin Kyung's 2 O' Clock'. On the program, Choiza revealed, "Recently, I lost a good bit of weight. Since I lost all that weight, people have been coming up to me and telling me that I look good. But I don't have a girlfriend right now. I want to date a lot, but I haven't really been able to. I wanted to be able to love a lot, so that's the main reason I lost weight", laughing.

He then revealed, "When I debuted and promoted as a member under CB MASS, I weighed 100 kg (220 lbs). If I compare my weight back then to now, I've lost a total of 20 kgs (44 lbs). I tried working out a lot, exercising, but in the end the real secret is to just eat less. I lost the most weight when I only ate half of the bowl for each meal. The best effect is to cut down on all the carbohydrates."