เพลงในอัลบั้ม One drop a day (Original Soundtrack), Pt. 21하루 한 방울Ko Young Bae03:162헤엄장들레03:143하루 한 방울 (Inst.)Ko Young Bae03:164헤엄 (Inst.)장들레03:14อัลบั้มอื่นของ Korean Various Artists＜Queendom2＞ FINAL＜Queendom2＞ FANtastic QUEENDOM, Pt. 1-2Hot Singers part5＜Queendom2＞ FANtastic QUEENDOM, Pt. 1-1Fantastic Family Round 1<Queendom2> Position Unit Battle, Pt. 1-2Hot Singers PART2
