Super Junior KRY is the first official sub-group of Super Junior, formed in 2006. This sub-group contains Super Junior's 3 strongest vocalists, Kyuhyun, Ryeowook, and Yesung. 

 

          The trio was formed to showcase the singing talents of Super Junior. KRY's first performance was singing "The One I Love" from Hyena, a Korean drama. KRY was featured singing in many other dramas as well, and released several singles from 2006 to 2013. The group is currently on hiatus, that is, until Yesung is released from the army.