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Dancing girls at a benefit performance of the Ringling Brothers Barnum and Bailey Circus in New York City, 31st March 1954. The event is in aid of the United Cerebral Palsy fund. (Photo by Graphic House/Archive Photos/Getty Images)

Dancing girls at a benefit performance of the Ringling Brothers Barnum and Bailey Circus in New York City, 31st March 1954. The event is in aid of the United Cerebral Palsy fund. (Photo by Graphic House/Archive Photos/Getty Images)

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Four chorus girls wearing sparkly costumes dancing in a row, circa 1935. (Photo by FPG/Hulton Archive/Getty Images)

Four chorus girls wearing sparkly costumes dancing in a row, circa 1935. (Photo by FPG/Hulton Archive/Getty Images)

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Actresses at a benefit performance of the Ringling Brothers Barnum and Bailey Circus in New York City, 31st March 1954. (Photo by Graphic House/Archive Photos/Getty Images)

Actresses at a benefit performance of the Ringling Brothers Barnum and Bailey Circus in New York City, 31st March 1954.  (Photo by Graphic House/Archive Photos/Getty Images)