The Best Actress winner channeled Old Hollywood in an embroidered lace and metallic Marchesa sheath, which was perfect for showcasing her golden Oscar statuette.
Although she was dripping in diamonds, Mimi bombed once again in this Valentino Haute Couture disaster and nude platform heels. Somehow the diva managed to look frumpy and age-inappropriate all at once.
The “Hannah Montana” star’s champagne Jenny Packham gown was gorgeous, but the 17-year-old’s hunched posture simply didn’t do it justice.
The Queen reigned supreme in a regal lavender figure-hugging satin gown, which she accessorized with diamonds and pink sapphires courtesy of Chopard.
No one wears a classic tux better than gorgeous George (pictured here with girlfriend Elisabetta Canalis). But what was up with the “Up in the Air” Best Actor nominee’s limp feathered silver coif?
The “Avatar” star took a chance in a violet Givenchy couture gown. We loved the sparkling bodice and ruffled tulle skirt separately, just not together.
The “Prince of Persia” hottie struck a pose in a custom-tailored Burberry tuxedo. Yum!
J.Lo’s iridescent pink Armani Prive creation had the “wow factor” the diva said she was looking for in an Oscar gown. The cascading ruffles contributed to the dramatic effect.
The “Twilight” sourpuss looked much less awkward than usual in a stunning strapless midnight blue Monique Lhuillier gown. Kristen topped off her look with a classy diamond bracelet by H. Stern.
Winslet opted for a boring bustier gown by Atelier Yves Saint Laurent and Tiffany & Co. jewels. Though elegant, the dress lacked the flair she’s typically famous for.
The Spanish beauty was simply ravishing in a dusky red draped Donna Karan gown, chic bun, and Chopard jewels.
The busiest man in Hollywood was all smiles in his black Burberry tux and skinny silk tie. Don’t his spiked locks remind you a little bit of a certain “High School Musical” star?
It’s easy to see why Zac had all the young ladies screaming at him from the red carpet bleachers.
Although she couldn’t wait to kick off her Jimmy Choos, Meryl -- who has the honor of being the most nominated actress in Oscar history -- stood proudly in a plunging white gown by “Project Runway’s” Chris March.
The Best Supporting Actress nominee made a bold choice for the evening with this floral Dries Van Noten column gown. Kudos to Maggie for being one of the few who was willing to take a step outside the generic Oscars red carpet box!
Best Supporting Actress winner Mo’Nique looked better than ever in a beautiful bright blue Tadashi Shoji gown and floral hair accessory.
The Best Supporting Actress nominee originally selected a blue dress for her Oscars debut, but had a change of heart and opted to wear an Elie Saab Couture off-the-shoulder blush gown instead. Love the dress, but we’re not too sure about the chunky shoes!
The “Up in the Air” Best Supporting Actress nominee looked like she should be serving up sangria in her ruffled flamenco-style Marchesa gown.
The Best Actress nominee was absolutely “Precious” while working it in a blue off-the-shoulder Marchesa creation. Gabourey also won some extra points for her sass: “If fashion was porn, this dress is the money shot,” she laughed on the red carpet.
The hunky actor dressed to impress in a beautifully tailored tux. Scarlett Johansson is a lucky girl indeed!
Although her lilac Christian Dior frock created a controversy due to the strategically placed rosettes on her bust, we loved the two-toned gown’s overall elegant silhouette.
The “Twilight” heartthrob popped his signature lopsided pose in a Dolce & Gabbana ensemble.
At first glance, we adored the Best Actress ingenue’s interesting Prada frock, which was embellished with Swarovski crystal flowers, forks, knives, scissors, and other random trinkets. But upon closer inspection, the everything-but-the-kitchen-sink gown’s asymmetrical line seemed to detract from its beauty.
The Best Actress nominee delivered another command performance in her sparkling silver satin crepe and tulle Badgley Mischka creation. If only we could all look this good at 64!
The 47-year-old was sexy yet sophisticated in a ruffled silk organza Atelier Versace number. Congrats go out Demi for skillfully matching her skin tone to her gown!
Sarah Jessica Parker
Fashionistas like SJP can afford to take chances on the red carpet, but the “Sex and the City” star may have alienated a few of her fans in this top-heavy citrus silk Chanel couture gown.
Although the “30 Rock” funny lady has had some fashion flops recently on the red carpet, she put her best foot forward at the Oscars in a muted leopard print Michael Kors gown. We’re not really feeling the hair, but she wins our vote for most improved.
Robert Downey Jr.
The “Sherlock Holmes” star (with wife Susan Downey) was a fan favorite in his outrageous ensemble. Only RDJ could pull off casual kicks and a turquoise bow tie at the Academy Awards!
Cammie D. epitomized Hollywood glamour in her strapless embellished Oscar de la Renta gown, which she accessorized with a Cartier diamond ring and loose sideswept ‘do.
“A Single Man” Best Actor nominee looked suave and sexy in his single-breasted penguin suit.
For some reason, the country songstress opted to go trashy goth for her walk down the Oscar red carpet with her hubby, "The Blind Side" star Tim McGraw. From the extreme lace-embellished slit to the patent-leather bustier, this outfit is a failure from head to toe!
Kravitz upped the cool factor on the Oscar red carpet. It’s hard to look bad in tux, but let’s face it: the “Are You Gonna Go My Way” rocker would look hot in a potato sack!
Lenny Kravitz’s 21-year-old daughter was pretty as a picture in a pale pink and red velvet strapless sensation.
Rachel McAdams was another red carpet risk taker in a romantic Elie Saab number. The muted tones and flowing panels of organza and mousseline added to the dress’ fairytale effect.
The “Avatar” star’s winning streak on the red carpet continued with this elegant red one-shoulder Lanvin number. Although we’ve seen her wear similar styles this awards season, the 60-year-old still puts women half her age to shame!
The “A Single Man” director spiced up his traditional tux with a white floral boutonniere. When Ryan Seacrest asked Ford who he was wearing, the designer sarcastically replied, “Tom Ford.”
The ‘80s “It Girl” donned a bold purple goddess gown -- which perfectly complemented her fiery red tresses -- to pay tribute to her late “16 Candles” director John Hughes during the Oscars telecast. A chunky arm band completed her look.
Although many know him as his on-screen alter ego Madea, the “Precious” executive producer looked quite distinguished in his dapper threads.
Richie appeared ready to disco the night away at Studio 54 in a sequined Reem Acra dress and Judith Leiber clutch. Although she looked quite sophisticated, the vintage-style gown threatened to overwhelm her waif-like figure.
Although the “Dear John” star’s sculptural Armani Prive gown had a beautiful silhouette, the color and her nude makeup washed out her pale skin tone.
The “Star Trek” cutie looked out of this world in his classic black tux.
The “Sideways” star was a sheer disappointment in her lace and chiffon mess of a dress.
You can always count on the “Inglourious Basterds” star to don something fashion forward such as this cream and black Chanel couture number. But like the floral embellishment in the middle, we’re divided on this gown.
The “W.” actress played it safe in a gun metal gray Versace gown, which she accessorized with a Salvatore Ferragamo clutch.
Antonio Banderas and Melanie Griffith
From Antonio’s bushy beard to Melanie’s revealing sequined gown, the enduring Hollywood couple failed to impress. Oh, Antonio, you used to be so sexy!
The “Law and Order: SVU” actress’ ruffled navy Vera Wang gown accentuated her hourglass figure. Fred Leighton jewels and an elegant updo added to her chic look.
The “Precious” actress flaunted her baby bump in an orange Carolina Herrera creation.
Although she looked a tad uncomfortable in her taupe gown, the night belonged to “The Hurt Locker’s” Bigelow, who became the first woman ever to win an Oscar for Best Director. Can you believe James Cameron’s Amazonian ex is 58?!
The “View” hostess, who wasn’t shy about showing her support for “Precious,” sported a fairly figure-flattering one-shoulder Carmen Marc Valvo gown.
The “Avatar” Aussie (with girlfriend Natalie Mark) looked delicious in his tailored suit, skinny tie, and sexy scruff.
ABC’s red carpet correspondent would have scored a higher mark if we were just grading the gown, but we couldn’t take our eyes off that disastrous updo!
The British-born beauty proved she could still heat things up on the red carpet at 59!
Although the E! host didn’t look bad in her Gustavo Cadile creation, she paled in comparison to the real stars on the red carpet.