This nearly took my breath away:
Please make sure to watch the whole thing. It’s super fantastic! According to Wikipedia The Ross Sisters were a trio of female sibling singing dancers consisting of Aggie Ross, Elmira Ross, and Maggie Ross. Their public attention peaked during the 1940s, during which they were featured prominently in the film Broadway Rhythm. I’m not sure if the above clip is from Broadway Rhythm or not.
I’m an avid fan of old movies, and how these ladies escaped my attention before today, I have no idea. is a