LEE BADA (이바다) - Dreams [우리, 사랑했을까 - Was It Love OST Part 1]

유주 Yuju (GFRIEND) – First Day (우리, 사랑했을까 - Was It Love OST Part 3)

That'll Be the Day

NoWay

황치열 (Hwang Chi Yeul) – 모두 잠든 밤 (Quiet Night) [더 킹 영원의 군주 - The King Eternal Monarch OST Part 12]

손디아 (Sondia) - Still (우리, 사랑했을까 - Was It Love OST Part 2)

효린 (Hyolyn) Just Stay (Thirty But Seventeen OST Part 2)

[Single] Roy Kim - Pinocchio OST Part 2

Who Are You - Sam Kim (샘김) (The King- Eternal Monarch 더 킹- 영원의 군주 OST)

Echoes in the Silence

김정현(Kim Jung Hyun) - 첫눈처럼 (Like The First Snow) [철인왕후 - Mr. Queen OST]