Chris Hart – 翼をください / Tsubasawo Kudasai (날개를 주세요)
Track 12 from Album "Heart Song III"
Release Date: 2015.06.03
Chris Hart – Anatae
Track 01 from EP "Anatae (EP)"
Release Date: 2015.08.26
Chris Hart – ひまわりの約束 / Himawarino Yakusoku (해바라기의 약속)
Track 02 from Album "Heart Song Tears"
Release Date: 2016.10.19
Chris Hart – I Love You
Track 09 from Album "こころのうた～クリス·ハート ベスト～ / Kokorono Uta -Chris Hart Best- (마음의 노래 ~Chris Hart Best~)"
Release Date: 2017.10.04