The Collective Soul and Unconscious: Chapter One Original Soundtrack from "What Is Your B?"
| Grupo | 빌리 |
|---|---|
| Lanzamiento | 2022-03-01 |
| Tipo | ost |
| Canción principal | - |
The Collective Soul and Unconscious: Chapter One Original Soundtrack from "What Is Your B?" is a OST release by the K-pop group Billlie, released on March 1, 2022. Billlie debuted on November 10, 2021 under Mystic Story.