What does it take to be Kim Jong Kook's girlfriend? His good friend and actor Jang Hyuk revealed the musclebound singer's requirements on the latest 'Entertainment Relay'.

Jang Hyuk shared, "My good friend Kim Jong Kook recently got a leg injury, so he hasn't been able to participate in 'Running Man' normally. If he had someone beside him, it'd be better, but because he's [suffering alone], I feel sorry and worry for him."

In terms of Kim Jong Kook's ideal, the actor commented, "She has to be someone who likes spending a lot of time at the gym and loves protein as well as chicken breast meat," causing laughter.

Do any of you meet the requirements?