Oscar Week Parties

Drew Barrymore and Mick Jagger

Drew Barrymore

and Rolling Stones frontman Mick Jagger were among the chic stars who attended a pre-Oscar dinner hosted by Chanel and Charles Finch at L.A.'s legendary Madeo restaurant. "I'm wearing head-to-toe Chanel," said Barrymore, who put her own spin on the classic French label's pieces. "I love that it's Chanel but it's still hippie and rocker and flowy."

-Bronwyn Barnes, with reporting by Scott Huver, Kwala Mandel and Lindzi Scharf

Naomi Watts and Uma Thurman

"I'm looking forward to a good meal," said Naomi Watts, who caught up with Uma Thurman before sitting down to partake of the Italian feast at Chanel's pre-Oscar dinner. And it wasn't just the food that was enticing-"I'm wearing Chanel tonight, even the beautiful perfume," Watts said, taking a moment to breathe in the scent on her wrists.

Rachel Zoe and husband Rodger Berman

Also at the Chanel dinner, star stylist Rachel Zoe stayed mum in order to avoid any Oscar fashion spoilers. "Anne and I love to play dress up, so this has been the best excuse to do it," Zoe said when asked how longtime client Anne Hathaway was prepping her wardrobe changes for the Oscars. Could Zoe offer any hints on what labels Hathaway would wear? "Nope, no hints!" said Zoe.

Natalie Portman

Natalie Portman

braved a windy day at the beach to attend the 2011 Film Independent Spirit Awards in Santa Monica. "This is my first time here," said Portman, who picked up the Spirit Award for Best Actress wearing a Givenchy Couture custom-made dress.

James Franco and Danny Boyle

James Franco

took a break from Oscar rehearsals to pick up the award for best male lead at the 2011 Film Independent Spirit Awards, where he thanked 127 Hours director Danny Boyle and described the filming process as, "a crazy, crazy experience — that I don't think I'll ever repeat."

Amber Tamblyn

Amber Tamblyn

was among the stars who stopped by the Elle green room at the Film Independent Spirit Awards to warm up with a cup of coffee and pick up spring must-haves from the BCBGMAXAZRIA apparel and accessories bar. Eco-friendly celebrities like Kate Walsh, Kerry Washington and Jon Hamm also made time to sign the AVEENO Active Naturals pledge wall, which helped raise a donation to Million Trees NYC.

Anna Kendrick

The Twilight Saga

's Anna Kendrick took a break from the Spirit Awards to stop by the LG Cinema 3D HDTV backstage lounge, where she and fellow guests Michelle Trachtenberg, Rosario Dawson and Vanessa Hudgens watched portions of the ceremony in 3D. The stars also checked out hot items from Nautica, New Balance and Marchon Eyewear and picked up VIP-only gifts like an AMC theaters Signature pass and complimentary memberships to Crunch gyms. In addition to the giving, there was also some receiving-for each guest who stopped by, LG Electronics made a donation to Film Independent's Project:Involve.

Michelle Williams & More!

Busy Phillips

(in vintage Pucci) and Bryce Dallas Howard (in Jil Sander) were among the guests who joined Forevermark and the Diamond Information Center to toast Academy Award nominee Michelle Williams during an elegant dinner pasty at the Chateau Marmont. "I'm tailored to within an inch of my life!" said Williams of her perfect-fit Louis Vuitton dress. What's the actress' fashion plan for Sunday night? "I feel like on me, less is more but the rules change at the Oscars," she mused. "So 364 days a year less is more and then I break the rule for the Oscars."

Joy Bryant and Livia Firth

Joy Bryant

and Livia Firth (wife of Academy Award nominee Colin Firth) took time out of their Oscar week schedules to co-host a luncheon with Oxfam and InStyle in celebration of the 100th anniversary of International Women's Day. "When women like us come together, we have the power to make great change," Firth told the all-female crowd who gathered at Soho House in West Hollywood.

Kristin Davis

Also in attendance at Oxfam and InStyle's International Women's Day luncheon, Kristin Davis shared her experiences as an Oxfam ambassador. "I have been working with them for six years now. I had just been on my first safari to Tanzania and Kenya. I kept asking to see how the people really lived in the villages but the guides just looked at me like I was a crazy American," Davis recalled. "Then I met Claire amp#91;Godfrey, of Oxfamamp#93; and told her I'd love to travel with her and find out what was really going on. She said, 'Great! When can you go?' I said, 'Where do you need me to go?' She said, 'Name a place and we need you to go!' And that's how it began."

Hailee Steinfeld

True Grit

's Hailee Steinfeld was among the Academy Award nominees who stopped by the Four Seasons Hotel in Beverly Hills to explore the Extra Luxury Lounge in honor of the Oscars. After getting pampered at the L'Oreal beauty suite and picking up gifts from Magaschoni Cashmere, Invicta and TiVo, guests were also encouraged to clean out their closets and donate clothing to Working Wardrobes, which provides clothing to at-risk men and women looking for jobs.

Maria Menounos

Access Hollywood

correspondent Maria Menounos got ready for Oscar night at Kari Feinstein's Academy Awards Style Lounge, where she was among the stars were treated to Corso Como's Ballasox ballet flats, beauty products from the StriVectin line and jewelry from Tacori.

Kellan Lutz

Twilight Saga

star Kellan Lutz was among the fun-loving stars who took part in the 4th annual Hollywood Domino gala, held at the Sunset Tower in West Hollywood. Lutz mingled with Mila Kunis, Hayden Panettiere and Chris Evans during the 40s themed event, which benefitted the Seven Bar Foundation.

Stacy Keibler & More!

Also at the Hollywood Domino gala, Odette Yustman, Arielle Kebbel and Stacy Keibler all showed off their vintage-inspired attire. "I always wear color, so I thought 'Why not try black?'" said Yustman (in Gustavo Cadile). "It's old school."

Rodger Berman and Rachel Zoe

Mommy-to-be Rachel Zoe (in vintage Oleg Cassini) and husband Rodger Berman were among the first to arrive at the opening of designer Tom Ford's Los Angeles boutique. Zoe's first impressions of the sleek new space? "It's amazing," she gushed. "But that's no surprise. Everything Tom does is amazing."

MORE: The stars flock to the opening of Tom Ford's L.A. boutique.

Livia and Colin Firth

Tom Ford fan Colin Firth made himself right at home during the opening night celebration at the designer's new boutique. The Academy Award nominee-who was accompanied by wife Livia-perched his martini atop one of the accessories cases on display.