Thanks to NapsInStereo on Twitter I was able to find out, albeit quite late, that well established singer Yoon Jong Shin has been releasing a single for every month since April last year. Monthly Project 2011 June, or 2011 月刊 尹鍾信 June as it is also called, was released on May 31 and is a ballad called 말꼬리 featuring Jung Joon Il of Mate. Check out the music video here.