Suho of EXO collaborates with Youngjoo for a new SM STATION track. This is also the last SM STATION track and Suho’s sweet voice was a fantastic way to end their year long project. The music video is great and the song “Curtain” and lovely. SM Entertainment says, “SM STATION’s new track “Curtain”, by SUHO(EXO) and YOUNGJOO SONG, has been…