Swing Girls

A bunch of lazy and unmotivated schoolgirls are thrown into the extracurricular music club of their school and not exactly voluntarily. They are trying to cut out the hard stuff - yes, mathematics - and become the replacement crew for the actual musicians in the school club, but slowly come into their own as they learn to handle the instruments and themselves better. Craziness and zaniness ensues, but how is the swing music delivery at the end?