Super Junior's Heechul and TRAX's Jungmo came together to form a�new project group called 'M&D'. The duo have already released their debut track, but their music video for 'Close Ur Mouth' is on its way! On June 23rd, the MV will be released through�SMTOWN's official YouTube and Facebook accounts. Reportedly, it was filmed earlier this month at 'EverySing Noraebang' in Seoul's Apgujeong-dong.�Heechul was said to have directly participated in the making of the music video, casting the actors and filming staff himself. On the other hand, Jungmo showed off his talents as an artist by playing the guitar, bass, and electronic drums for the music video. In addition, Supreme Team's Simon D, miss A's Jia, FT Island's Hongki and Jonghoon, B2ST's Junhyung and comedian Kim Kyung Jin have made special appearances in the music video, adding to the rising anticipation for its release. Source: SPN via Nate