DJ DOC's member Kim Chang Ryul revealed a picture taken with group Taetiseo.

On September 24, Kim Chang Ryul posted on his Instagram, "'Old School's best guest. I am so happy today" along with a picture.

In the picture, Kim Chang Ryul and Taetiseo members are making Vs at the camera in the radio station. Taetiseo had joined the radio program as guests after releasing their new song "Holler".

Internet users who saw this commented, "I've never seen him so happy," "Taetiseo is so beautiful," and "All four of them are so cute."