D.Ark (디아크), 박강백 (배기) – 경우의 수 (Feat. CHANGMO) (Prod. Way Ched)
Track 02 from EP "고등래퍼4 - 팀대항:교과서 랩 배틀1"
Release Date: 2021.04.03
박강백 (배기) – 끼리끼리 (Feat. ZENE THE ZILLA (제네더질라)) (Prod. Way Ched)
Track 02 from EP "고등래퍼4 Semi Final 1"
Release Date: 2021.04.10
강서빈 (YUNG CHENS), TRADE L, 박강백 (배기), D.Ark (디아크) – BACKPACK (Feat. CHANGMO) (Prod. Way Ched)
Track 03 from EP "고등래퍼4 - 팀대항:단체전"
Release Date: 2021.03.27