M&D (shortened from Midnight & Dawn or Miari & Dangye-dong) is a South Korean pop rock group formed by SM Entertainment in 2011. The group is composed of Super Junior's Heechul and TRAX's Kim Jungmo. Both members are planning to write and compose every single song the project group will release. They'll continuously release music which they can and want to do, regardless of the genre. Their debut single, "Close Ur Mouth" was released in June 2011. On April 16 2015, they released their first mini-album D.I.Y..