Having released their title track, 'Miss You', last month, SM Entertainment's project quartet, S.M The Ballad, has finally made their debut on Music Bank! Consisting�of Super Junior's Kyuhyun, TRAX's Jay, SHINee's Jonghyun, and rookie Jino, the group sings their title track, "Miss You", which effectively�showcases each member's unique and talented vocals. Jay was missing from today's performance due to conflicting schedules. Watch their second debut performance below!