swiped from Busby Berkeley

There's a fairly elaborate dancing mermaids sequence in a nightclub where a pool is uncovered, the girls jump in, and from above we see the girls swimming in geometric patterns that are straight out of Busby Berkeley.
I thought at first this must be Berkeley's choreography, but this number lacks Berkeley's surprise camera work and zany inventiveness. I figure someone conveniently plagiarized--what a cheek. Who I don't know; don't see him 'credited' anyplace.