Best Dressed of the Week: Nia Long Is Berry Appealing

Plus, Alicia's red-hot streak, Rita goes platinum and more.

Fine in Wine - With its thigh-high slit and plunging neckline, Nia’s berry-hued Michael Costello gown at The Best Man Holiday premiere should come with this warning: dangerous curves ahead! At 43 years old, the woman shows no signs of slowing down. (Photo: Kevin Winter/Getty Images)

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Nia Long - Stepping out for The Best Man Holiday premiere, the actress proves that like a fine wine, she only gets better with time. Nia slays in a berry-hued Michael Costello gown with thigh-high slit and statement bling that leaves us breathless. (Photo: Kevin Winter/Getty Images)

Alicia Keys - Since 2002, Grammy Award-winning singer Alicia Keys has made HIV/AIDS in Africa a top priority. She helped launch the organization Keep a Child Alive, which provides lifesaving medications for Africans living with HIV/AIDS. Recently, Keys and the Kaiser Family Foundation created Empowerment, a new program for women with HIV living in the U.S.(Photo: Gilbert Carrasquillo/FilmMagic/Getty Images)

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Alicia Keys - The singer is definitely on fire in her scarlet Cushnie et Ochs ball gown, which was clearly made for her perfect hourglass shape, at the Keep a Child Alive Black Ball. (Photo: Gilbert Carrasquillo/FilmMagic)

Rita Ora - Rita goes for high impact in a long-sleeved Ermanno Scervino lace gown in ivory and her signature crimson pout for the Harper's Bazaar Women of the Year Awards. We wonder if her new platinum tresses are the inspiration behind this radiant look. (Photo: WeirPhotos / Splash News)

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Rita Ora - Rita goes for high impact in a long-sleeved Ermanno Scervino lace gown in ivory and her signature crimson pout for the Harper's Bazaar Women of the Year Awards. We wonder if her new platinum tresses are the inspiration behind this radiant look. (Photo: WeirPhotos / Splash News)

Photo By Photo: WeirPhotos / Splash News

Sanaa Lathan - The Best Man Holiday actress found herself in midst of a real-life horror show when she came home to find a man sleeping in her bed. The deranged fan later told police he was Lathan's husband, and was promptly arrested for trespassing. The stalker was ordered into intensive psychotherapy to rid him of his obsession.(Photo: Kevin Winter/Getty Images)

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Sanaa Lathan - Following suit with Nia’s ageless beauty, Sanaa flaunts her trim waistline in a curve-hugging Donna Karan dress with velvet detailing for The Best Man Holiday premiere, a look we plan to steal for our upcoming holiday soirees. (Photo: Kevin Winter/Getty Images)

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Kelly Rowland - The X Factor  judge is having a ball in her sparkling Gert-Johan Coetzee cocktail dress and oval clutch while heading out for dinner in Beverly Hills. (Photo: Devone Byrd, PacificCoastNews)

Photo By Photo: Devone Byrd

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La La Anthony - We’re having a hard time believing that the stunning lace details of La La’s black lace Marchesa dress are not actually painted on her for the Keep a Child Alive Black Ball. Just flawless, right? (Photo: Gilbert Carrasquillo/FilmMagic)

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La La Anthony - We’re having a hard time believing that the stunning lace details of La La’s black lace Marchesa dress are not actually painted on her for the Keep a Child Alive Black Ball. Just flawless, right? (Photo: Gilbert Carrasquillo/FilmMagic)

Helen Lasichanh - The model shows her stripes, or should we say spots, in a luxe leopard-print sweater and matching trousers, both by Lanvin, topping off her wild look with classic round-toe pumps.(Photo: PacificCoastNews.com)

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Helen Lasichanh - The model and new wife of Pharrell Williams takes a walk on the wild side in a luxe leopard-print sweater and matching cropped trousers, both by Lanvin, for WSJ Magazine's Innovator of the Year Awards. It’s not an easy look to pull off, but she nails it. (Photo: Darla Khazei, PacificCoastNews)

Mary J. Blige: Swimming Helps Me Stay Fit - In the December 2013 issue of Shape, the queen of hip hop soul, Mary J. Blige, shared that to keep things fresh in her workouts, she learned how to swim. “At first it was very hard, but once I got in the water and figured out how to breathe, it was so liberating.” (Photo: Frazer Harrison/Getty Images)

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Mary J. Blige - We love that Mary breaks away from this season’s darker color pallet in a fuchsia Gucci jumpsuit and a grape-hued clutch with tasseled detailing for the LACMA 2013 Art + Film Gala. Yep, it’s another fresh look to add to our holiday fashion hit list. (Photo: Frazer Harrison/Getty Images)

Jeanette Jenkins - The celebrity fitness trainer goes for Old Hollywood glamour in a shimmering silver column gown, burgundy lips and lush waves at the Keep a Child Alive Black Ball. (Photo:  Gilbert Carrasquillo/FilmMagic)

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Jeanette Jenkins - The celebrity fitness trainer goes for Old Hollywood glamour in a shimmering silver column gown, burgundy lips and lush waves at the Keep a Child Alive Black Ball. (Photo:  Gilbert Carrasquillo/FilmMagic)

Zoe Saldana - Take a minute to digest the actress’ black Gucci gown, with sexy mesh inserts and flashes of emerald green, at the LACMA 2013 Art + Film Gala. Then peep her impeccable makeup and bouncy blowout.  (Photo: Jason Merritt/Getty Images for LACMA)

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Zoe Saldana - Take a minute to digest the actress’ black Gucci gown, with sexy mesh inserts and flashes of emerald green, at the LACMA 2013 Art + Film Gala. Then peep her impeccable makeup and bouncy blowout.  (Photo: Jason Merritt/Getty Images for LACMA)