NMB48 is the second Japanese sister group to AKB48 and debuted in July of 2011 with the single 絶滅黒髪少女. The group represents the Namba district of Osaka, Japan and performs in their local theater, which is located in the basement of the Yes-Namba building in the city.

The group has three official teams (excluding the Kenkyuusei or trainee group), which are N Team, M Team and BII Team respectively.