Best Dressed of the Week: Keri Hilson Is Simply Stunning

Plus, must-see summer looks from Rihanna, Beyoncé and more.

Keri Hilson - For a stop at the L.A. premiere of Riddick, Keri Hilson chooses a simply chic dress in all-black and waist-length braids.(Photo: Jason Merritt/Getty Images)

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Keri Hilson - For a stop at the L.A. premiere of Riddick, Keri Hilson chooses a simply chic dress in all-black and waist-length braids.(Photo: Jason Merritt/Getty Images)

Flawless - Hitting up the 2013 VMA after party, she flaunted her toned gams in a long-sleeved LBD by Balmain, adding a chunky diamond choker and scarlet lips for maximum look-at-me appeal. (Photo: Splash News)

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Rihanna - The queen of all entrances struts her stuff in downtown New York wearing a skintight LBD with strappy heels and attention-grabbing diamond accessories. (Photo: Splash News)

Michelle Obama - Michelle Obama steps out for the March on Washington anniversary celebration in a pretty printed dress from Tracy Reese’s fall collection—and she looks glorious!  (Photo: Alex Wong/Getty Images)

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Michelle Obama - Michelle Obama steps out for the March on Washington anniversary celebration in a pretty printed dress from Tracy Reese’s fall collection—and she looks glorious! (Photo: Alex Wong/Getty Images)

Photo By Photo: Alex Wong/Getty Images

Nicole Richie - The crop top trend isn’t going anywhere. At the Simone Camille show in L.A., the stylish designer goes for a girlie pink two-piece that shows off her midsection, and adds a statement collar necklace to complete the look.   (Photo: Amy Graves/WireImage)

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Nicole Richie - The crop top trend isn’t going anywhere. At the Simone Camille show in L.A., the stylish designer goes for a girlie pink two-piece that shows off her midsection, and adds a statement collar necklace to complete the look. (Photo: Amy Graves/WireImage)

Nicole Scherzinger - The X Factor judge hits the red carpet in London wearing a navy strapless jumpsuit with a sweetheart neckline and golden zippers. We love the color!  (Photo: Stuart C. Wilson/Getty Images)

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Nicole Scherzinger - The X Factor judge hits the red carpet in London wearing a navy strapless jumpsuit with a sweetheart neckline and golden zippers. We love the color! (Photo: Stuart C. Wilson/Getty Images)

Photo By Photo: Stuart C. Wilson/Getty Images

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Beyoncé   - In a fitted black dress with sheer side panels, with Lorraine Schwartz jewels and ankle-strap pumps, Beyoncé turns the New York sidewalk into her personal catwalk.  (Photo: Splash News)

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Beyoncé - In a fitted black dress with sheer side panels, with Lorraine Schwartz jewels and ankle-strap pumps, Beyoncé turns the New York sidewalk into her personal catwalk. (Photo: Splash News)

Angela Simmons - The always-fashionable star pairs her red-hot leather pants with a black-and-white sweatshirt from Urban Outfitters.  (Photo: Bennett Raglin/BET/Getty Images for BET)

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Angela Simmons - The always-fashionable star pairs her red-hot leather pants with a black-and-white sweatshirt from Urban Outfitters. (Photo: Bennett Raglin/BET/Getty Images for BET)

Photo By Photo: Bennett Raglin/BET/Getty Images for BET

Rita Ora - The British beauty makes a splash in a sexy red leather-embossed dress by Versace and matching stilettos for a night out in the Big Apple.  (Photo: 247PapsTV / Splash News)

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Rita Ora - The British beauty makes a splash in a sexy red leather-embossed dress by Versace and matching stilettos for a night out in the Big Apple. (Photo: 247PapsTV / Splash News)

Photo By Photo: 247PapsTV / Splash News

Eve - Eve has been winning in the fashion department lately! The rapper blends business and pleasure in this tuxedo-style dress for Perez Hilton's party in NYC.  (Photo: Johnny Nunez/WireImage)

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Eve - Eve has been winning in the fashion department lately! The rapper blends business and pleasure in this tuxedo-style dress for Perez Hilton's party in NYC. (Photo: Johnny Nunez/WireImage)

Photo By Photo: Johnny Nunez/WireImage

Rosario Dawson - Rosario Dawson shines in her DKNY asymmetric dress and silver pumps. Not only is it summer-ready, it looks super comfy too.(Photo: Astrid Stawiarz/Getty Images)

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Rosario Dawson - Rosario Dawson shines in her DKNY asymmetric dress and silver pumps. Not only is it summer-ready, it looks super comfy too.(Photo: Astrid Stawiarz/Getty Images)