Kim Jong Kook - 봄이 왔나 봐 (Spring has come) (Prod. by Yang Da Il)
Kim Jong Kook - 听见下雨的声音 (Listening to the Sound of Rain)
Kim Jong Kook - My Love
Kim Jong Kook - 걷고 싶다 (Walking Along With You)
Kim Jong Kook - 눈물을 훔친다 (Tear Thief) (The Forbidden Marriage X Kim Jong Kook)
Kim Jong Kook - 我的爱不用还 (Don't Need to Return My Love)
Kim Jong Kook - 지우고 아플 사랑은.. (forget-me-not)
Kim Jong Kook - 바보야 (Fool) (OST Sweet Stranger and Me Track.1)
Kim Jong Kook - 눈물 자국 (Mark of Tear)
Kim Jong Kook - White Love (Feat. SangChu of Mighty Mouth)