Upcoming boy group MUSTB has released the music video for their debut song 'I Want U'! The music video was released on the 1st of December, but the single has yet to be released on music sites.

In the music video, seven members can be seen, as the original group was supposed to be seven members. But ahead of the release of their music video and their debut, three members left. One of them being former MASC member Chibin. He revealed he had left the company and group on his own volition a couple of days prior to the music video release.

The other two members who left, are unknown to the public. Their names have not been disclosed by anyone still in the group or by their company.

That means that there are currently four members left. And three of them have previous idol experience. These three are Kim Dohyun, who previously performed with Underdog and Hi5 under the name Baekjin, Oh Sangwoo, who performed with Underdog, D.I.P, Hi5 and Blast under the name Kain, and Sihoo (Seongwook), who trained to debut in A to Z as Heemin.

On the last member, nothing is known, except that his name is Hawoon and that he is the group's maknae. That, however, is not that weird, as no articles have been released on this group yet and the company has not released any official information on this group either. Hopefully, by the time of their debut, more information will come out.

MUSTB will debut under MustM Entertainment.