Current state:
active
Must.Be (Korean: 머스트비; Japanese: マストB) (formerly known as MustB) is a five-member boy group. They held their debut showcase on January 21, 2019, and released their first digital single "I Want U" on January 30, 2019.
On November 7, 2023, MustM Entertainment took to social media to announce that MustB has ended their contracts and left the company, however, the group has not disbanded.
Korean: 태건
Korean: 우연
Korean: 도하
Korean: 수현
Korean: 시후