Hello Gayoung (안녕하신가영) - Blue Day (마음이 아픈 날에는) ko
Ben - Can’t Go (갈 수가 없어) ko
UJi - Drawing A Star (별 그림) ko
Haebin (해빈) (gugudan) - Everyday ko
MeloMance (멜로망스) - Feel Like Falling in Love (사랑하고 싶게 돼) ko
Heejin 희진 (GOOD DAY) - Shelter (Feat. OFA (이요한)) ko
Mun Sung Nam (문성남) of Every Single Day (에브리싱글데이) - This Life ko
Ryu Ji Hyun (류지현) - Tomorrow ko