U.S. singer Beyonce smiles next to her husband, U.S. rapper Jay Z, after arriving for the Metropolitan Museum of Art Costume Institute Gala 2015 celebrating the opening of “China: Through the Looking Glass,” in Manhattan

U.S. singer Beyonce smiles next to her husband, U.S. rapper Jay Z, after arriving for the Metropolitan Museum of Art Costume Institute Gala 2015 celebrating the opening of “China: Through the Looking Glass,” in Manhattan

U.S. singer Beyonce smiles next to her husband, U.S. rapper Jay Z, after arriving for the Metropolitan Museum of Art Costume Institute Gala 2015 celebrating the opening of “China: Through the Looking Glass,” in Manhattan, New York May 4, 2015. REUTERS/Andrew Kelly