히키 (Hickee) – 말
Track 01 from Single 'Soliloquize'
히키 (Hickee) – Thank you
Track 02 from Single 'Soliloquize'
히키 (Hickee) – 사랑에 연습이 있었다면 (답가)
Track 01 from Single "사랑에 연습이 있었다면 (답가)"
Release Date: 2019.06.02
히키 (Hickee) – 내맘이 그대맘에
Track 01 from Single "더 게임 : 0시를 향하여 OST Part.2"
Release Date: 2020.02.05
히키 (Hickee) – 불면증
Track 01 from Single "불면증"
Release Date: 2019.04.07
히키 (Hickee) – Cry Me A River
Track 01 from Single "Cry Me A River"
Release Date: 2018.03.08
히키 (Hickee) – 네 편이 되어줄게
Track 01 from Single "하나뿐인 내편 OST Part.10"
Release Date: 2018.11.11
히키 (Hickee) – 너무나 흔해버린 말들이
Track 01 from Single "너무나 흔해버린 말들이"
Release Date: 2019.10.25
히키 (Hickee) – Love Chat (Feat. Slow)
Track 01 from Single "Love Chat"
Release Date: 2018.10.21
히키 (Hickee) – Wizard
Track 01 from Single "Wizard"
Release Date: 2020.08.10
히키 (Hickee) – 향 (Fragrance)
Track 01 from Single "향 (Fragrance)"
Release Date: 2018.07.08
히키 (Hickee) – Hello
Track 01 from Single "쇼윈도 : 여왕의 집 Vol.1"
Release Date: 2021.11.29