Beyoncé isn't letting motherhood slow her down. On Monday night, Queen B hit the red carpet at the splashy Costume Institute Gala held at the Metropolitan Museum of Art in New York City in a dress that left very little to the imagination.

Her sheer, skintight Givenchy haute couture gown was highlighted with black sequins and beading, as well as purple and black feathers on the floor-length hemline. The dress showed off her fit, curvaceous post-baby body. B was one of many fashionistas who dazzled at the annual fete.

Other fashionable standouts included Rihanna, who hit the event in a black, long-sleeved column gown with lizard-like printing over the fabric. Kristen Stewart also made a statement in a knee-length color-block Balenciaga dress. And "Vampire Diaries" star Nina Dobrev glittered in a black one-shoulder Donna Karan gown that hugged her body.

Beyoncé's red-carpet-ready look arrived just as she announced that she's added another date to her set of [article id="1681308"]comeback shows[/article] in Atlantic City later this month. The singer has added a fourth show to her Memorial Day weekend residency at the Revel entertainment center in the New Jersey shore town. Tickets for the May 28 show go on sale on May 14, according to Aceshowbiz.com.

The singer's first shows since 2011 will take place in the smoke-free Revel's signature performance space, Ovation Hall, which was designed by a team of Cirque du Soleil veterans.

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