Best Dressed of the Week: Rita Ora Is a Total Knockout

Plus, Sanaa Lathan's red-hot dress and more must-see looks.

Like a Mermaid - Flaunting her figure at the British Fashion Awards, Rita Ora captivated onlookers in an aquamarine Vivienne Westwood gown. Her smoky eyes and silver chocker complemented the intricate fishtail confection to perfection. (Photo: Ian Gavan/Getty Images)

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Rita Ora - The British beauty shut down the red carpet at London's British Fashion Awards in a knockout silver and aquamarine Vivienne Westwood gown and sparkling choker. (Photo: Ian Gavan/Getty Images)

Red Haute - Actress Sanaa Lathan is stunning in this red off-the-shoulder dress as she arrives to the Hollywood Foreign Press Association and InStyle magazine celebration of the 2013 Golden Globes Awards Season at Cecconi's in West Hollywood, California. (Photo: Kevin Winter/Getty Images)

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Sanaa Lathan - The actress turned heads in her off-the-shoulder red number at an awards event at Cecconi's in West Hollywood. (Photo: Kevin Winter/Getty Images)

Polka Dots - Kerry Washington looked lovely and feminine in a Kate Spade fit-and-flare polka-dot dress. In fashion and in interiors, spots are trending everywhere. (Photo: Alberto E. Rodriguez/WireImage)

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Kerry Washington - Is there anyone more consistent than Kerry? At the Variety studio event in L.A., the actress posed in an adorable black-and-white polka-dot Kate Spade New York dress and nude pumps. (Photo: Alberto E. Rodriguez/WireImage)

Zoe Saldana - Zoe Saldana showed off her effortless style in a pretty fit-and-flare Preen frock, worn with shimmering leopard pumps and red lips at the Independent Spirit Awards nominations in Hollywood. (Photo: Landov)

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Zoe Saldana - Zoe Saldana showed off her effortless style in a pretty fit-and-flare Preen frock, worn with shimmering leopard pumps and red lips at the Independent Spirit Awards nominations in Hollywood. (Photo: Landov)

Kenya Moore - Real Housewives of Atlanta star Kenya Moore stepped out in suede boots to go with her winter-ready tweed and leather mini at the Chelsea Studios in New York City. (Photo: Ray Tamarra/Getty Images)

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Kenya Moore - Real Housewives of Atlanta star Kenya Moore stepped out in suede boots to go with her winter-ready tweed and leather mini at the Chelsea Studios in New York City. (Photo: Ray Tamarra/Getty Images)

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LaLa Anthony - LaLa Anthony buttoned up in her Ohne Titel knit jacket at JCPenney’s Holiday Giving Tour kickoff at CitiPond in NYC.  (Photo: Larry Busacca/Getty Images for jcpenney)

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LaLa Anthony - LaLa Anthony buttoned up in her Ohne Titel knit jacket at JCPenney’s Holiday Giving Tour kickoff at CitiPond in NYC.  (Photo: Larry Busacca/Getty Images for jcpenney)

Selita Ebanks - Selita Ebanks worked the peplum trend in a scarlet satin ball gown at the 2012 UNICEF Snowflake Ball. (Photo: Stephen Lovekin/Getty Images)

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Selita Ebanks - Selita Ebanks worked the peplum trend in a scarlet satin ball gown at the 2012 UNICEF Snowflake Ball. (Photo: Stephen Lovekin/Getty Images)

Bold Patterns - Fashion has always embraced prints and patterns but it’s fair to assume that the masses have finally caught on. Thankfully, the Knowles sisters proved full-out print clashing is permissible, too. (Photo: Jason LaVeris/FilmMagic)

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Solange - The singer stunned in another printed look, this time in a Boxing Kitten romper with buckled heels at her L.A. listening party for her new album, True. (Photo: Jason LaVeris/FilmMagic)

Alicia Keys - We spotted Alicia Keys in New York dressed casually in an army-green blouse, gray sweater, leather jacket, black slacks and booties. Cute combo! (Photo: Cindy Ord/Getty Images)

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Alicia Keys - We spotted Alicia Keys in New York dressed casually in an army-green blouse, gray sweater, leather jacket, black slacks and booties. Cute combo! (Photo: Cindy Ord/Getty Images)

Beyoncé - At the New York Nets game at Barclays Center in Brooklyn, the superstar complemented her leather skinnies with a funky Stella McCartney sweater, sky-high blue platforms and glam gold jewelry. (Photo: James Devaney/FilmMagic)

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Beyoncé - At the New York Nets game at Barclays Center in Brooklyn, the superstar complemented her leather skinnies with a funky Stella McCartney sweater, sky-high blue platforms and glam gold jewelry. (Photo: James Devaney/FilmMagic)