babamania does not really belong to one genre but are more of a cross over between many styles. However, this mix of styles is mostly determined by their two vocalists.
Genki, the band’s rapper brings in a lot of hip-hop sound, while the female vocalist Mari gives the band a rock sound. Sometimes the band also tries other styles like jazz and r’n’b, but in general they play a mix of rap and rock.
Official Website: http://www.babamania.info/
Imperial Records: http://www.teichiku.co.jp/artist/baba/