C.N. Blue just released the MV for their debut track "I'm a loner," a few hours ago and they also rocked out at their showcase. A few hours have passed since the photographs from the showcase have been released and now here's some video footage from the event. C.N. Blue will make their first live debut performance on KBS Music Bank on the 15th, so stay tuned! In the meantime check out their performance and Interview at the showcase below. Performing "I'm a Loner" Performance Snippet and Interview