The Duchess Of Cambridge Attends The Opening Night Of "42nd Street" In Aid Of The East Anglia Children's Hospice [Getty Images]

LONDON, ENGLAND - APRIL 04: Dancers perform during the Opening Night Royal Gala performance of "42nd Street" in aid of the East Anglia Children's Hospice at the Theatre Royal Drury Lane on April 4, 2017 in London, England. (Photo by Steve Parsons - WPA Pool/Getty Images)

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