Egyptian-born singer Dalida and her brother Orlando in the audience of the Bulgarian-born French singer Sylvie Vartan's concert at the Olympia Hall in Paris. (Photo by James Andanson/Sygma via Getty Images)
Egyptian-born singer Dalida and her brother Orlando in the audience of the Bulgarian-born French singer Sylvie Vartan's concert at the Olympia Hall in Paris. (Photo by James Andanson/Sygma via Getty Images)