Yoo SeungWoo (유승우) / Superstar K4 - 열정 (Passion) [originally by SE7EN]
Roy Kim - October Rain [superstar K4]
[Superstar K4] Jung Joon Young & Roy Kim - 먼지가 되어 (After Turning Into Dust)
Jung Joon Young - Emergency Room [superstar K4]
Roy Kim - Whistle [superstar k4]
Roy Kim (로이킴) & Jung Joon Young (정준영) - 먼지가 되어 (Becoming dust) (SuperStar K4)