Bincika the collective soul and unconscious: chapter one Original Soundtrack from "what is your B?" na Billlie, wanda aka saki a ranar 28/02/2022. Kundin waƙoƙi 10 wanda ya haɗa da 'the rumor ~ whatchamacallit', 'a sign ~ overture to Billlie', 'everybody’s got a $ECRET (instrumental version)'. Samu cikakken kididdigar yawo, nazarin kowace waƙa, da ma'aunin shiga na masu sauraro.
