레드블루 – Perfect Love
Track 01 from Single "Perfect Love"
Release Date: 2018.11.05
레드블루 – Promise
Track 01 from Single "Promise"
Release Date: 2018.02.05
레드블루 – 그리워하다
Track 01 from Single "그리워하다"
Release Date: 2018.04.04
레드블루 – I Want Love
Track 01 from Single "I Want Love"
Release Date: 2018.09.03