Jay Z and Beyonce attends the "Charles James: Beyond Fashion" Costume Institute Gala at the Metropolitan Museum of Art on May 5, 2014 in New York City. Credit: Kevin Mazur/WireImage

Flawless! Beyonce Knowles stunned at the Metropolitan Museum of Art's Costume Institute Gala, alongside her husband Jay Z.

The couple opted for a monochromatic look: Beyonce donned a Givenchy Haute Couture by Riccardo Tisci custom gown while Jay also wore a Givenchy Haute Couture tux.

Queen Bey looked stunning in a black dress which was covered all over with crystals, stones and studs. The 32-year-old wore a matching bodysuit underneath with embroidered fishnet tights and shiny crocodile leather sandals. The "Drunk In Love" singer topped the dangerously low look off with a face mask by Philip Treacy and jewelry by Lorraine Schwartz.

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Jay Z, 44, opted for a white grain de poudre jacket with satin details, worn with matching black pants, silver metal cufflinks, a black silk bow tie and velvet derby shoes.

The duo, who recently announced they're going on tour together, walked the carpet hand in hand looking all the more the power couple.