Perhaps it is because this film seems made for black audiences and aimed at them as a demographic. I'm not saying there isn't a lot for white people to laugh at. I'm just saying that the film is more geared toward a black audience. This is more Def Jam than Sienfeld, let's say. The comedians do lots of bits about music here.
Songs pop up throughout the film.
Why black comedians sing and dance and such is a mystery to me. It is part of the cultural difference between white and black comics and audiences. There's even a remote controlled camera on tracks at the foot of the stage that appears in other shots in the film and almost becomes a supporting player. There's a plethora of audience reaction shots, different angles on the comedians, and a lot of behind the scenes footage as well. And, DV or not, the film looks pretty crappy blown up to 35mm.