Singer Kim Jong Kook revealed that he has broken up with a girlfriend in the past because of him working out.

In KBS2 "Happy Together" aired today, the 4 ballad stars Kim Jong Kook, Kim Yeon Woo, Huh Gak, and K.Will came out as guests.

On this day, Kim Jong Kook came out with chicken breast shake at the midnight snack bar, keeping his work out man pride.

Kim Jong Kook said, "I've broken up with my girlfriend in the past because of me working out."

He continued, "At first, she met with me because she liked the consistency and the persistent manner of me working out. But later, she said 'You do it too much'", arousing laughter.

Photo Credit: KBS2