Olivia wore:
Jacket: Helmut Lang
Tank: Enza Costa
Pants: Balenciaga
Shoes: Aldo
Cuff: Alexis Bittar
She was styled by Kemal & Karla.

Kaley Cuoco is in a gown from David Meister.  Shoes & clutch are Jimmy Choo.  Her jewelry is vintage 19th century cuff & earrings from Platt in West Hollywood.  She was styled by Kemal & Karla.

Amy Poehler will wear a dress from Reem Acra, with shoes from Stuart Weitzman.  Jewelry from Chopard and a clutch from Judith Leiber.  Styled by Kemal & Karla.

Alexis Bledel wore a dress from Sachin & Babi for Ankasa Resort 2010 to the LA premiere of her movie "Post Grad."  Her shoes were Jimmy Choo's "Poem" platforms.  She is styled by Kemal & Karla.

Leah wore a dress from Kimberly Ovitz with booties from Prada.  Her ring was from Broken English and her cuff was from Borgioni.  She was styled by Kemal & Karla.

Jordin wore a dress from bebe with Alexander Wang shoes.  Her jewelry was from Lee Angel & she carried a clutch from Rebecca Minkoff.

She was styled by Kemal & Karla.

Demi Moore wore a dress from Zac Posen with Brian Atwood for Bally shoes.  She wore garnet and gold earrings and diamond, platinum, garnet and gold bracelets from Neil Lane.

Demi is styled by Rachel Zoe.

Jaime Pressly wore a dress form Joey Tierney Couture with shoes from Dior and a bag from Fendi.  She wore onyx, diamond and platinum rings from Neil Lane.

Jaime is styled by Joey Tierney.

Olivia Wilde wore a black satin bustier dress from Dolce & Gabbana with Sergio Rossi black crystal heels.

She is styled by Kemal & Karla.

Serena Williams wore Roberto Cavalli from the pre-fall 09 collection.

PHOTOS COURTESEY OF ELEVATION PHOTOS.

Kristen Bell wore a dress from 3.1 Philip Lim paired with Jimmy Choo "Katy" platforms .  She carried a clutch from Topshop.  Earrings were from Amrapali and chocolate diamond ring was from LeVian.

She was styled by Nicole Chavez.

Olivia Wilde wore a dress from J. Mendel with Jimmy Choo "Lottie" sandals.  She carried a Sergio Rossi clutch.  Her earrings were from Sara Weinstock and ring & bangles were from Arman.

She was styled by Kemal & Karla.

Ashley Greene wore a dress from BCBG Max Azria with a Sergio Rossi clutch & shoes.  Her jewelry was from Loree Rodkin.

She was styled by Ilaria Urbinati.

Amber Heard wore a top and skirt from Alexander Wang, with a belt from 3.1 Philip Lim.  Her shoes were from Chloe.  She carried a clutch from Stella McCartney.

She was styled by Johnny Wujeck.

Amanda Bynes wore a dress from Pencey with Louboutins.  Her clutch was from Tory Burch and necklace from Roberto Coin.  She did not work with a stylist.

Leona Lewis wore a woll cocktail dress with silk georgette sleevs from Elie Saab.  She did not work with a stylist for this event.

Kim Kardashian wore Nuj Novakhett's Streak Patterned Heartthrob dress with shoes and a clutch from Christian Louboutin.  Her jewelry is from Loree Rodkin.  She is styled by Monica Rose.

Rachelle LeFavre wore a dress from Max Azria with shoes from Azzedine Alaia.  Her ring is from Joan Hornig and cuff is from C. Greene. She is styled by Kemal & Karla.

Audrina Patridge wore an Alexander McQueen cutout dress with Gucci platforms. She is styled by Joey Tierney.

Rumer Willis wore a black & neon yellow sequined minidress from Elise Overland with Louboutin sandals.  Rumer is styled by Lisa Michelle.

Bryce Dallas Howard wore a full-length skrit from Io Ipse Idem by Romeo Gigli from F/W09, paired with a silk jersey tee from 671 by Des Kohan.  Her bag is from Sonia Rykiel.  Booties are Acne Jeans.  Socks are from Japanese designer Tsumori Chisato.  Sapphire and diamond earrings from teh 1970s and bracelets of diamonds, sapphires and aquamarine set in platinum & blackened gold are from Nadine Krakov.  She is styled by Ezra Woods.

Moon Bloodgood wore an asymmetrical dress from Cushine et Ochs with shoes from Rene Caovilla.  She carried a Jimmy Choo "Kase" clutch.  Earrings were Stephen Webster blackened silver 3-D hoop earrings and ring was faceted silver and mother of pearl from the Stephen Webster Superstud collection.  She was styled by Kemal & Karla.

Anton Yelchin wore a suit & tie from Savile Row tailor Timothy Everest, with shoes from Esquivel.  He was styled by Gena Tuso.

Click through for detail shots of Moon's jewelry

Moon wore a lovely silk-chiffon lilac gown from Emanuel Ungaro to the Paris premiere.  Her shoes were Rene Caovilla and diamond jewelry from Kwiat.  She was styled by Kemal & Karla.

Moon Bloodgood wore a Reem Acra couture dress with jewels from Van Cleef & Arpels.  Shoes were Jimmy Choo.  She was styled by Kemal & Karla.

Bryce Dallas Howard wore a futuristic dress from Marios Schwab with nude Louboutins.  Her earrings were Lucifer vir Honestus and bracelet was a vintage piece from Nadine Krakov.

Rose McGowan wore a top & skirt from Katy Rodriguez with Louboutins.  Her bracelet was from Neil Lane and ring was from Tiffany & Co.  She was styled by George Kotsiopoulos.

Kathryn Morris wore a red tucked mini-dress with a chain halter from KAUFMANFRANCO.  She was styled by Tod Hallman.

Rashida Jones wore a Derek Lam dress with YSL shoes.  She awesomely mixed high/low for her jewelry:  earrings from 14 Karat and a necklace from Forever 21!  She did not work with a stylist for this event.

Amy Poehler wore a Diane von Furstenberg dress with Sergio Rossi shoes and carried a Club Monaco clutch.  Bracelet was from C. Greene.  She was styled by Kemal & Karla.

Click through for detail pics

Olivia Wilde is in a Ralph Lauren gown (S/S 09), Jimmy Choo shoes, Donna Karan clutch.  Jewels:  Cartier Panther Collection earrings. bracelet & ring.  Watch by Van Cleef & Arpels.  Styled by Kemal & Karla.

Olivia Wilde is wearing:

Dress:  Reem Acra

Shoes:  Jimmy Choo

Jewelry:  Van Cleef & Arpels, “Socrate” earclips and cocktail ring with round diamonds set in 18k white gold.

Styled by:  Kemal Harris & Karla Welch