Inside the Hottest Parties of Oscar Weekend

The songstress looked regal in a black and white gown with a high slit and open back and her black opera gloves at the Weinstein Company pre-Oscar dinner held Saturday at the Montage Hotel in Beverly Hills, Calif.

The couple enjoyed a date night at the Weinstein Company pre-Oscar dinner (presented with Chopard, DeLeon, Fiji Water, and Lexus), where Teigen enthusiastically offered standing ovations to the evening's performers.

The singer-actress captivated the Weinstein Company pre-Oscar dinner crowd with a rousing performance.

After being announced as the new star of Singin' in the Rain on Broadway, Hough performed two number from the iconic musical at The Weinstein Company's pre-Oscar bash.

The Academy Award winner dazzled at the Charles Finch and Chanel pre-Oscar dinner held Saturday at L.A's Madeo restaurant. "It’s so beautiful," she told InStyle of her Chanel dress. "It’s so special, and it’s all handmade."

The celebrations leading up to the 2016 Academy Awards have been a different experience for the handsome husband-and-wife pair. "Last year was such a frenzy, I sort of wasn’t really able to take it all in," Redmayne told InStyle at the Charles Finch and Chanel pre-Oscar dinner. "So this year it feels slightly more relaxed about the whole thing."

The Room star and 2016 best actress Academy Award nominee stepped out in a shiny strapless black cocktail dress at the Charles Finch and Chanel pre-Oscar dinner. Larson paired her belted dress with pointed-toe ankle-strap heels and accessorized with a bracelet and a black handbag.

For the Charles Finch and Chanel pre-Oscar dinner, the actress decided to go simple. "I didn’t want to be styled. I just picked a pair of pants and wore my jacket," Stewart told InStyle of her Chanel ensemble. "I’m wearing a little black jacket. I feel so lucky to have it. They’re like a coveted item."

Dressed in Chanel with a matching BCBGeneration leather jacket, the actress described how her look conveyed her celebratory mood at the Charles Finch and Chanel pre-Oscar dinner. It's "'party,' [but] a little less contrived—and just fun," she told InStyle of the ensemble.

The actress opted for a "combination of feminine and a little bit tough" for her outfit at the Charles Finch and Chanel pre-Oscar dinner. "Everything Chanel is so beautiful and makes you just feel confident," she told InStyle. "It’s just timeless. Everything’s timeless and you can wear forever."

The actress, a 2016 best actress Academy Award nominee, captured attention with her vivid mosaic-patterned jacket at the Charles Finch and Chanel pre-Oscar dinner.

The Oscar-nominated co-stars of The Danish Girl reunited at the Film Is Great reception held at Fig & Olive in West Hollywood, Calif., on Friday.

The gentlemen were a picturesque example of British talent spanning various genres at the Film Is Great reception honoring the U.K.'s nominees at the Academy Awards. Oscar winner Redmayne, a 2016 best actor category nominee, said, “It's a real honor for me to host this event and celebrate what I think has been an incredible year for British films.”

The supermodel opted for a navy dress with red accents for the Film Is Great reception, where she chatted Benzine, the director of the Oscar-nominated documentary short Claude Lanzmann: Spectres of the Shoah.

At the ninth annual Women in Film pre-Oscar cocktail party, the actress gave a speech about pay inequality in the industry and beyond. The Friday event at Hyde Sunset Kitchen + Cocktails in West Hollywood, Calif., celebrated the 51 women who are up for an Academy Award this year.

The Oscar winner, who spoke about women's rights to equal pay, also met up with MAC Cosmetics Global Brand President Karen Buglisi Weiler at the Women in Film pre-Oscar party. Guests at the star-studded fête sipped Perrier-Jouët Champagne as well as Fiji Water, Patrón Tequila, and Arcanum Wines beverages.

The actress, who received a 2016 Oscar nomination in the best supporting actress category, looked chic in Max Mara as she chatted with Greg Clark of Untitled Entertainment at the Women in Film cocktail party.

The actresses opted for two very different all-black ensembles at the Women in Film pre-Oscar party: Bell donned a tube top with a sheer long-sleeve shirt and pinstripe pants while Silverstone shined in a glittery ankle-skimming gown.

The actresses cozied up for a photo at the Women in Film pre-Oscar cocktail party. 

Blanchett glowed in a white Antonio Berardi dress at Friday's inaugural SK-II #ChangeDestiny Forum in L.A., where the 2016 best actress Oscar nominee hosted a conversation about positive changes in women's lives—including her own.

The models enjoyed a bite and each other's company at Friday's Net-a-Porter Celebrates Women Behind the Lens luncheon at the Chateau Marmont in Los Angeles. The event struck a powerful note for Ratajkowski (in a Reformation top, Brian Atwood shoes, and Jacquie Aiche jewelry). "It’s so cool to see women talking about the lack of women telling stories, whether that be in fashion or in Hollywood," she told InStyle.

The Net-a-Porter Celebrates Women Behind the Lens luncheon brought out stars, including de Cadenet and Heard, to toast the ladies who wield cameras in the fields of fashion, film, and photography.

Singer, actress, and entrepreneur Zendaya turned heads the moment she walked into Essence's ninth annual Black Women in Hollywood luncheon Thursday afternoon in L.A. The reason? Her gorgeous silk Thakoon jumper. "This look is very chill. This kind of event, it's not super dressy ... people have a little fun and you can be a little more casual, but still elegant," she told InStyle. Scream Queens beauty Keke Palmer rocked over-the-top braids and a multi-panel dress that wowed.

Could these two be anymore inspiring? Thandie Newton proudly rocked a #SayHerName tee in support of the African American Policy Forum's empowering movement. "The reason I wanted to wear it today is because I think that in film we have such an incredible influence over the public, and influence in the world," Newton told InStyle. "The stories that we tell have the power to change people’s lives." Always a study in elegance, Oprah hugged Newton and smiled from cheek to cheek.

Forget winter! Kelly Rowland arrived in a gorgeous ensemble that featured mustard yellow pants and a matching white blouse with a bow-tie detail. That's how you welcome spring weather.

The brain behind How to Get Away with Murder and Scandal, Shonda Rhimes sported a black, long-sleeve dress with floral graphics. Meanwhile, dancer, choreographer, and overall industry veteran Debbie Allen rocked a red hot Armani number to receive the Essence Black Women in Hollywood Legend award.

Mowry showed off a new 'do and revealed, "I was inspired by Khloe Kardashian" She told InStyle: "I’ve gone blonde before, which was about three years ago. But, I saw what it did to her. I was like, 'Damn, this girl looks good!'" Meanwhile Smollett-Bell's stunning white ensemble showed off her curves flawlessly.

Chris Rock, Sunday evening's host and man of the hour, practiced his red carpet swag in a three-piece gray suit with sleek glasses to match. 

Zendaya and Rhonda Ross Kendrick (Tracee's sister) joined Tracee Ellis Ross on stage, where the actress received the well-deserved Fierce and Fearless award.

At the Chateau Marmont in L.A Thursday night, Private Practice star Kate Walsh met up with Mom's Allison Janney for Cadillac's first-ever pre-Oscars celebration. Twinning!

Swoon! The always-dapper Christoph Waltz mingled with fellow Cadillac guests and made time for a little cocktail action.

After giving us a major dose of bright color at the Essence luncheon, Rowland began her night at the Cadillac party, where a perfectly tailored black jumpsuit met the occasion's sleek dress code.

Creating a Modern Family on screen makes for adorable IRL friends. Co-stars Jesse Tyler Ferguson and Ty Burrell, both in dapper, relaxed suit jackets, made sure to catch up.

Don't think Suits star Abigail Spencer would opt to rock a matching pants and jacket combo. The brunette beauty wore a peach silk dress with a belted waist and oversize sleeves.

Girls star Andrew Rannells was all smiles inside the fête.

Was the Chateau Marmont the spot to be Thursday night? Apparently so! Inside Bar Marmont, Dakota Fanning and Kate Bosworth cozied up and talked all things beauty in celebration of Chanel's new "I Love Coco" exhibit. We adore Coco too, ladies.

There's only one word that could accurately describe Rachel Zoe's party-hopping look: major. 

Willow Smith and Janelle Monae glowed so brightly we couldn't help but whip our heads back and forth in awe. 

Former Mad Men actress Kiernan Shipka once more proved to be a bonafide fashion It girl.

Twenty-one-year-old former Transformers star Nicola Peltz opted for high-waisted white trousers with a matching black top and chain-strapped handbag. 

While it's rare to see stylist Brad Goreski not in a suit, this casual jeans and a tee combo totally works.

We'd be lying if we said we weren't in love with Pretty Little Liars star Ashley Benson's '80s-like outfit.

A date night for Camila Alves and Matthew McConaughey isn't exactly low key. The handsome pair arrived into Unite4:Good's third annual Unite4:Humanity Gala in Beverly Hills Thursday night, where the actor was honored for his philanthropic work with the Just Keep Livin Foundation. Though Alves's Paule Ka design caught our eye, the beauty wanted McConaughey's efforts to be recognized. "It's about my husband tonight, so just honoring him," she told InStyle. As for why the evening was especially important for them: "The work that we do in the foundation, we're so hands on, on the program," Alves said. "We're so involved in everything that's going on. So it's actually amazing. It's a beautiful thing."

Does Olivia Wilde ever miss her mark on the red carpet? From the looks of this sheer white Elie Saab ensemble, the answer is no. The Vinyl star was recognized for her work with Save the Children. "As a mother, it's an organization that I am specifically working with to help focus on women and children and infants worldwide," she told InStyle. "I'm really proud of the work they do. In 2014 alone, they reached 40 million women and children."

Gina Rodriguez wore a fanciful Sachin & Babi gown at the Unite4:Humanity gala, where the actress was honored for her own We Will Foundation and discussed serious business. "Luckily, we live in a culture that does praise the good because it reminds the world that it's easy to give and be kind and serviceable to others," she told InStyle. "But it should be a standard. We're humans."

Rogen's stunning wife, Lauren Miller, supported her husband at the Unite4:Humanity gala, where the actor was honored for his relationship and ongoing support of Hilarity for Charity.