As reported earlier, Super Junior's Heechul and TRAX's Jungmo came together to form a new project group called 'M&D' and their debut track music video for 'Close Ur Mouth' has now been released! The MV was released through SMTOWN's official YouTube and Facebook accounts on June 23rd. 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 made special appearances in the music video. Heechul tweeted, "M&D movie is out. Kyungjin, Simon D, Hongshi, Jonghoon, Yong Yong. Meloacting by Jia. Because of the hot tempered director, the MV filming was completed in 10 minutes ?? Jungmo said he'd be so late so we didn't wait for him and just shot our cuts and left ?? D is a man that doesn't wait." Meanwhile, a UCC contest which will run from June 24th to July 7th, will be looking for entries which can rival the MV below. Those interested are to upload their video before sending an email to an e-mail event@smtown.com with information about the participant and the video URL. All participant videos can be viewed through the official website of SM and SM Town's Facebook page and the winner which will be announced on July 6th. The winner will be given a pair of slippers which have drawings by Kim Heechul and other presents will be given as well. The winning video will be shown on SM Town's (www.youtube.com/smtown) Youtube channel. Without further ado, check it out below! Source: Kim Heechul Twitter