EXchange4, Pt. 1 (Original Soundtrack)
| 所属组合 | 보이넥스트도어 |
|---|---|
| 发行 | 2025-10-01 |
| 类型 | ost |
| 主打曲 | - |
EXchange4, Pt. 1 (Original Soundtrack) is a OST release by the K-pop group BoyNextDoor, released on October 1, 2025. BoyNextDoor debuted on May 30, 2023 under KOZ Entertainment.