Lee Kwang Soo uploaded a photo on his Twitter on Saturday saying "My friend Joong Ki is a person like this. He is now, and I swear he will be like this in the future too. PS. A sudden melodramatic comment right before I fall asleep." In the uploaded photo, Lee Kwang Soo, Kim Jong Kook, and Song Jung Ki, who were all members of SBS entertainment program "Running Man," are looking at the camera, smiling. It is apparent that they are best friends.  

Netizens said things like "Lee Kwang Soo compliments Song Jung Ki so much. How about Kim Jong Kook?" "I hope the friendship lasts forever," and "They all look so happy."