The singer, who previously announced that he would be collaborating with Super Junior's Kyuhyun for a new ballad duet, has dropped teaser images and a MV teaser! The upcoming ballad track, titled "Two Men", was revealed to have been composed by Mystic Entertainment CEO and singer/song writer Yoon Jong Shin! 

Sounds like a hit, doesn't it? Make sure to tune in to Parc Jae Jung's comeback duet with Kyuhyun, this coming May 19!