MB meaning in Community ?

Mindless Behavior was an American boy band who were best known for the singles "My Girl" and "Mrs. Right", produced by Walter Millsap. The band was put together in Los Angeles in 2008, by Keisha Gamble, Vincent Herbert and Walter Millsap. The band trained in dance and singing for two years before releasing a recording in Japan Music. The members were all in their early teens when the band was created.

Shortly after, lead singer Crippen separated himself from the group, leaving behind the original three members. The group would then introduce two other members, singer EJ and Mike.In March 2020, Jacob Latimore mentioned Mindless Behavior, OMG Girlz, Diggy Simmons, & Jawan Harris on Instagram saying “Yo, It’s Time”.