ROO - 나 그거하나봐 연애 (I think I'm in love) (OST My Golden Life Part.2)
ROO - 여름달 (Light me up)
ROO - In my world
ROO - 사랑이겠죠 (It's Love) (OST Radiant Office)
Roo - Sewage of Love (OST I’m Sorry Kang Nam Goo)
Roo - 딱좋은 (Just Good) (feat. Truedy)
Roo - In My World (Drama Ver.) (OST Touching You Part.3)
ROO - 그럴게 (I'll Do It)
ROO - 답답해 (Suffocating)