Rush

RUSH released on August 22 2023, is the fifth digital single album by the boy group MustB. The title track, "RUSH," features a high-energy, performance-focused sound that highlights the group's "passionate" and "unstoppable" identity. This release marked the final official comeback under the name MustB before the group's 2024 transition to their independent rebrand as BE: MAX. The physical Air-KiT version, released on August 24, includes exclusive high-concept photography showcasing the members' mature visual shift.