Lupita Nyong'o in Prada
Nyong'o delivered on her reputation as this season's best-dressed new star, draped in a light blue, deep-necked, Grecian-style gown topped off by a thin gold headband. A+
Sandra Bullock in Alexander McQueen
The Gravity star donned a sleek midnight blue McQueen gown with a sweetheart neckline — a winning ensemble coupled with loose curls and Lorraine Schwartz jewels. A
Angelina Jolie in Elie Saab
Jolie may have covered up (what, no up-to-there slit?), but she stunned on the red carpet regardless in a nude mesh dress that sparkled from head to toe in ombre crystals. B+
Julia Roberts in Givenchy
Roberts looked every bit the Pretty Woman in a black dress with peplum, lace, and mesh details. B+
Anne Hathaway in Gucci
Hathaway wore a metallic breast plate — sorry, black crystal halter-necked gown — accessorizing with a bold red lip and sleek cropped hair. B-
Kate Hudson in Versace Atelier
Hudson gave a nod to old Hollywood glam in a '40s-inspired white number accessorized with more than a hint of décolletage and draped shoulders. A-
Pharrell Williams in Lanvin and Helen Lasichanh
The ''Happy'' songsmith left his famous hat at home and took to the red carpet in a shorts-meets-tux (a shortsedo?) ensemble. C-
Chrissy Teigen in Monique Lhuillier
Mrs. John Legend made walking on the red carpet look like a stroll through the park in a gown scattered with hundreds of pink roses. A-
Kerry Washington in Jason Wu
The Scandal star glowed in a dusty purple gown — with a thigh-high slit! — that draped nicely over her oh-so-cute baby bump. And that lipstick? Wow. B
Charlize Theron in Dior
The presenter channeled vamp chic in this black gown with an unusual, plunging neckline that showcased a dazzling Harry Winston diamond necklace. A
Jennifer Lawrence in Dior
Lawrence looked every inch the Hollywood bombshell in a bold red, peplum gown. Also making a return to the Oscar red carpet, J.Law's now signature necklace draped down her back. A-
Jessica Biel in Chanel
Biel looked — shall we say it? — boring in an awkwardly beaded and frilled couture gown that failed to make the most of the actress's gorgeous looks. C-
Naomi Watts in Calvin Klein Collection
Watts wore a white, cap-sleeved beaded column custom gown, but who cares about the dress when you're wearing this many Bulgari jewels? B+
Cate Blanchett in Armani Prive
There's no reason a nude mesh gown with sequin and crystal embellishments should work — and yet Blanchett was positively radiant in this princess gown with oversized Chopard earrings. A-
Olivia Wilde in Valentino
A very pregnant Wilde wowed on the red carpet with a black, high-necked dress, accessorizing with white drop earrings and a silver clutch. With dapper fiancé Jason Sudeikis by her side, Wilde's look was easily one of the best of the night. A
Kristen Bell in Roberto Cavalli
The Frozen star wore an icy lavender strapless dress that made the most of her petite figure — with fluffy organza pleats and a dramatic laced corset — but the hue was a bit too chilly for her skin tone. B
Amy Adams in Gucci
Adams exuded Oscars glam in a form-fitting navy blue couture gown, complete with a train that added just a hint of unexpected drama. A-
Anna Kendrick in J. Mendel
Kendrick channeled her inner goth girl with a black and nude mesh gown, accented by a sheer red beaded waist that screamed high school rather than high fashion. C-
Emma Watson in Vera Wang
Watson stormed the red carpet looking grown up — albeit a bit washed out — in a metallic top and skirt. B-
Jennifer Garner in Oscar de la Renta
Garner shimmied down the red carpet sans Ben Affleck in a silver column gown with a '20s style fringe — which would have been better suited at a gin-soaked soiree rather than a night at the Academy Awards. B
Viola Davis in Escada
Davis made sure all eyes were on her in a bold emerald dress accessorized with Lorraine Schwartz earrings and a Jimmy Choo clutch. If only the fit had been better, we'd be green with envy. B
Camila Alves McConaughey in Gabriela Candena
Forget Matthew — it was all about his wife, who was pretty in pink. Love the cascading shoulder. A-