정마루 – 버스떠나고
Track 01 from Single "버스떠나고"
Release Date: 2018.03.07
정마루 – 내안의 왈츠(Eternal Waltz)
Track 01 from Single "내안의 왈츠(Eternal Waltz)"
Release Date: 2019.05.17
정마루 – 이해해요
Track 01 from Single "이해해요"
Release Date: 2018.08.21
정마루 – 막내의 꿈
Track 01 from Single "막내의 꿈"
Release Date: 2018.03.23