Busby Berkeley - Footlight Parade (mashup)

This video is a mashup of the music Sirens' Whispering by Vangelis with a piece of the classical musical Footlight Parade, with showgirls by Busby Berkeley. The original was in black and white and with different music. Around the half-way point the clip gets quite spectacular and somewhat trippy.

@wiki Berkeley was famous for his elaborate musical production numbers that often involved complex geometric patterns. Berkeley's quintessential works used legions of showgirls and props as fantastic elements in kaleidoscopic on-screen performances. He started as a theatrical director, just as many other movie directors. Unlike many at the time, he felt that a camera should be allowed mobility, and he framed shots carefully from unusual angles to allow movie audiences to see things from perspectives that the theatrical stage never could provide. This is why he played an enormous role in establishing the movie musical as a category in its own right.

On YouTube you can find more clips.