The whole of MBLAQ couldn't sleep, so they called a meeting to the lounge. There was an awkward silence in the room for a while...Joon finally had an idea. "Hey! how about we sing a song out of boredom?". "aish joon, what should we sing then huh?"Seungho asked irritatedly. "how about 'Y'?" G.O said."wae?" the rest of MBLAQ said. "because it sounds good"Joon explained. So they sang "y"  http://www.youtube.com/watch?v=val9femyp2E. It actually worked, they felt sleepy.