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Beyonc stunned at the Grammys with a show-stopping performance and an acceptance speech for best urban contemporary album for "Lemonade," but she also caught fans by surprise with multiple looks at the awards show

Note that mens sleeveless shirts are not appropriate for the main dining room during formal nights

"I think the beauty of 'black-tie optional' is the guests' flexibility in formalwear," Zhang tells ELLE.com

(You can also check out some our favorite bouquets to create a one-of-a-kind arrangement for your "Twilight" wedding.) "Do I Dazzle You?" Wedding Bouquet Dazzle your guests with this opulent bouquet full of creamy peonies