After releasing their concept teaser shot and ambiguous, but enticing MV teasers, the boys of B2ST have revealed their album jacket for their 3rd album "Mastermind." The jacket seems to have strayed away from the military concept of the initial teaser shots,�but fans seems ok with whatever these boys bring out so keep it coming! Remember to support the group by purchasing their album. The digital release is on September 28 and the physical release is on the 30th.