In Brief

* * * Onyx, “Bacdafucup,” Rush Associated Labels/Columbia. A raw, lusty, overwhelmingly funky energy propels this rap quartet’s songs, which offer stark, vivid slices of ghetto life. The rapping is properly ragged and the beats are blasting, while the lyrics bounce back and forth between anger and vulgar playfulness. The females-as-sex-objects approach will certainly offend some, but not the target audience of rowdy teen males.

New albums are rated on a scale of one star (poor) to four stars (excellent).