BOL4 – Puberty Book Ⅰ Bom (EP) Artists 볼빨간사춘기 (BOL4) Album 사춘기집Ⅰ 꽃기운 Release 2019.04.02 Info EP Download MEGA, GD (MP3) 2018-05-24 BOL4 – Red Diary Page.2 (EP)2017-09-28 BOL4 – Red Diary Page.1 (EP)2018-01-10 BOL4 – #First Love (Single)2019-12-23 Red Velvet – ‘The ReVe Festival’ Finale (EP)2019-06-24 CHUNG HA – Flourishing (EP) 볼빨간사춘기 (BOL4)