This May 7, 2012 file photo shows Beyonce Knowles at the Metropolitan Museum of Art Costume Institute gala benefit, celebrating Elsa Schiaparelli and
This May 7, 2012 file photo shows Beyonce Knowles at the Metropolitan Museum of Art Costume Institute gala benefit, celebrating Elsa Schiaparelli and Miuccia Prada in New York. (AP Photo/Evan Agostini, file)