Having just released their new track, 'Miss You', SM Entertainment's�project quartet, S.M The Ballad, have finally debuted on Inkigayo! Consiting of Super Junior's Kyu Hyun, TRAX's Jay, SHINee's Jonghyun, and rookie Jino, the group sings their new track 'I Miss You' which showcases each member's unique and talented vocals. Due to unforeseen circumstance, the project group's mini-album was unfortunately pushed back from November 25th to the 29th. Watch their debut performance down below!