Group JYJ's Kim Jae Joong held a birthday party, where even actor Song Seung Hun attended.

Today, entertainer Hong Suk Chun posted on his Twitter, "Seung Hun, Suk Won, and director Lee Jae Han at Jae Joong's birthday party, having fun for the first time in a while" along with a picture.

In the picture, Song Seung Hun, Hong Suk Chun, Jung Suk Won, and Lee Jae Han are posing in a dark room. They are all in comfortable clothing, and their faces are red.

Internet users who saw this commented, "Looks like they drank a bit," "Jung Suk Won looks really happy," and "Kim Jae Joong is friends with Song Seung Hun too?"

Photo Credit: Hong Suk Chun Twitter