WORST: Mariah Carey wore a gorgeous Valentino gown, which featured a dramatic slit up the side, but wore way too much bling, including an enormous brooch!

BEST: Anna Kendrick looked gorgeous in blushy-pink, off the shoulder Elie Saab gown, which featured a laced slit up the side.

BEST: Amanda Seyfried was a vision of classic glamour, wearing a simple, Armani Prive strapless from the Spring 2010 collection.

WORST: Virginia Madsen looked like a gothic country star in a belted lace and chiffon gown.

BEST: Vera Farmiga rocked an origami-like Marchesa strapless, which was richly hued in crimson.

WORST: Mo’Nique stunned in a boldly blue, Tadashi Shoji floorlength, which featured an asymmetrical neckline, but then added a strange flower to her hair.

BEST: Zoe Saldana definitely thought outside the box when she picked out this Oscar gown! The Avatar star looked gorgeous in an elaborate Givenchy strapless from the Spring 2010 Couture Collection, which featured a crystal embellished bodice and a poufy skirt of cascading purple color.

BEST: Nicole Richie stayed true to her eccentric style, wearing a high-necked, backless Reem Acra beaded floorlength.

WORST: Maggie Gylenhaal wore a wacky Dries Von Noten strapless, in an over-the-top print.

BEST: Elizabeth Banks stunned in classically constructed Versace.

BEST: Zac Efron looked dapper and divine in his perfect-fit tuxedo.

BEST: Carey Mulligan wore head-to-toe Prada, including a strapless gown, which was embellished in forks and scissors.

BEST: Diane Kruger looked statuesque in a timeless, Chanel Haute Couture halter.

WORST: Sigourney Weaver’s red, one-shouldered Lanvin gown, featured a harsh, black sash and shoulder brooch.

BEST: Sarah Jessica Parker was in standout style, wearing a yellow and blue Chanel Haute Couture gown which featured a reverse halter neck.

BEST: Rachel McAdams looked fem and fab in a pastel-hued Elie Saab Haute Couture strapless, which featured a woven bodice.

WORST: Tina Fey’s one-shouldered Michael Kors would’ve made the Best Dressed list, but her black panties ruined its chances.

BEST: Miley Cyrus stunned in a sophisticated, champagne Jenny Packham, which featured a tight, corseted bodice.

BEST: Penelope Cruz stunned in a bordeaux Donna Karan strapless, which looked amazing against her dark skin.

BEST: Precious star Gabourey Sidibe wore an impeccably draped, off-the-shoulder blue Marchesa gown, which really flattered her curvy figure. Lorraine Schwartz jewelry finished off the look.

BEST: Meryl Streep opted for a simple and understated, white floorlength, which featured a dropped neckline and a banded waist.

WORST: The rosette attachès on Charlize Theron’s Christian Dior were impossible to get past.

BEST: Queen Latifah stunned in a figure-flattering, lavender one-shoulder.

WORST: Sandra Bullock’s silver, beaded column Marchesa gown failed to flatter her petite figure.

BEST: Demi Moore looked gorgeous in a peachy, Atelier Versace strapless.

BEST: Kate Winslet looked amazing in a grey, Yves Saint Laurent strapless.

BEST: Gerard Butler looked dapper in a classic tuxedo.

BEST: Cameron Diaz shimmered in a gold, Oscar de la Renta strapless.

BEST: Taylor Lautner looked hunky in a perfectly tailored tuxedo.

BEST: Jake Gyllenhaal looked dreamy in a custom-tailored black tuxedo, dress shirt, bow tie and shoes all by Burberry.

WORST: Robert Downey Jr. brought comedy to the red carpet, wearing a funny, blue bow tie, tinted glasses and tennis shoes.

BEST: Jeff Bridges kept in Crazy Heart character, rocking long hair and a beard with her tuxedo.

BEST: This Monique Lhuillier was truly representative of Kristen Stewart’s style. The strapless, midnight blue silk satin organza gown, featured a sculpted bodice and fitted trumpet skirt.

BEST: Chris Pine looked handsome in a Ralph Lauren tuxedo and Ferragamo shoes.

BEST: Helen Mirren looked gorgeous in Badgley Mischka.

WORST: Neil Patrick Harris wore an embellished tux with satin pants and patent leather shoes!

BEST: Lenny Kravitz brought his daughter, Zoe as his date, and the two looked equally chic!

WORST: Jennifer Lopez wore an Armani Prive gown, which failed to flatter her curvy figure.