Renee, Kang Seungwon - Nothing

Sunwoojunga, Kang Seungwon - Spring Breeze
Jung Seung Hwan, Kang Seungwon - Your Smiling Face
수지 Suzy, Kang Seungwon - Because I Love You
Kang Seungwon - Come To Me
Sung Si Kyung, Kang Seungwon - You don't have to say anything (I already know)
Jang Pill Soon, Kang Seungwon - Hide and Seek
Zion.T, Kang Seungwon - 20th Century Peoples
Gummy, Kang Seungwon - Happy Ending
Renee, Kang Seungwon - Nothing

Jung Seung Hwan, Kang Seungwon - Your Smiling Face

Sung Si Kyung, Kang Seungwon - You don't have to say anything (I already know)

IU, Kang Seungwon - Mother Nature (H₂O)

Seungwon Kang - 20th Century Carol (19792016) (with. Lyn)
Seungwon Kang - Andromeda (with. Sung Si Kyung, Jung Yumi)
Seungwon Kang - Zero Gravity (with. Zion.T)
Seungwon Kang - Digital World (with. Kiha Jang)
Seungwon Kang - Winter (with. Lena Park)
Seungwon Kang - 30 Something (with. Inkwon Jeon)

Seungwon Kang - Run

Seungwon Kang, Younha - Him (Cigarette) (with Younha)