Paris Hilton wore:

Dress:  Azzedine Alaia

Shoes:  Jinny Kim

She was styled by The Kids.

Christina Applegate wore:

Jumpsuit:  Kate Moss for Topshop

Boots:  Azzedine Alaia

Jewelry:  Loree Rodkin

Clutch:  Jimmy Choo

She was styled by Jessica Paster.

Christina Ricci wore a vintage Azzedine Alaia dress with Louboutins and a clutch from YSL.  She did not work with a stylist.

PHOTO COURTESEY ELEVATION PHOTOS.

Marion Cotillard selected an Elie Saab mosaic print silk dress from the RTW Fall 09 collection.  Her python clutch was also from the Elie Saab collection.  Her shoes were Jimmy choo "Gloss" platform sandals.  She did not work with a stylist for this event.

Christian Bale wore a head-to-toe YSL ensemble.

Leelee Sobieski selected an Hermes dress for the occasion, topped with a Donna Karan leather jacket.  Shoes were from Azzedine Alaia.  Her belt was from her own collection - purchased at a vintage store in Santa Fe.  She did not work with a stylist for this event.

Amber Heard wore a dress and belt from Eva Culture with Jimmy Choo "Idol" platforms.  She wore a spiked ring of black and white diamonds from Hellmuth and a cocktail ring in chocolate diamonds from Le Vian.  Her black diamond cuff was from Bochic, and pink diamond and platinum cuff was from Neil Lane.  She was styled by Johnny Wujeck.

Rosario Dawson wore a dress from Dries van Noten.

PHOTOS COURTESEY OF ELEVATION PHOTOS.

Cameron Diaz recieved her star on the Hollywood Walk of Fame today wearing an Oscar de la Renta ivory linen dress with red patent leather belt from the Resort collection.  Her shoes are Sergio Rossi's "Veronika" pump.  She is styled by Rachel Zoe.

Lucy Liu wore a beige ruffled dress from Max Azria with Jimmy Choo "Idol" platform sandals and Jimmy Choo "Rock" sunglasses.  Her bag was from LAI, and jewelry was from Melinda Maria in L.A. She was styled by Lee Harris.

Click through for more + Katie Holmes and Lucy Liu

Sandra Bullock (pictured with "The Proposal" co-star Ryan Reynolds) wore an amazing Abaete dress with Azzedine Alaia shoes on the red carpet. Her jewelry was from Gurhan.  She was styled by Deb Waknin.

Kristen Bell wore a Sally Tseng bustier with a Nuj Novakhett skirt for a complete mini look.  Her necklace was from Azzaro, as was her clutch (not pictured).  Bracelet was House of Lavande.  She wore Jimmy Choo's "Blaze" sandals.  She was styled by Nicole Chavez.

Leighton Meester rocked a risky mesh mini from Emilio de la Morena.  She paired it with Brian Atwood "Brie" purple suede booties from FW09 and a platinum & diamond cuff and rings from Cathy Waterman. She  carried a Marc Jacobs bag (not pictured).  She was styled by Logan Horne.

Vanessa Hudgens wore a tangerine dress from BCBG Max Azria.  Shoes were Jimmy Choo's "Riv" platform sandals.  Necklace is from H. Stern's "Icon" collaboration collection with Diane von Furstenberg.  She is styled by Deb Waknin.

Ashley Tidsale wore a sexy purple leather Elise Overland dress paired with the "Gypsi" sandal from Paul & Joe Sister.  Jewelry was from Loree Rodkin.  She was styled by Simone Harouche.

Hayden Panettiere wore another adorbale mini, this time from Emanuel Ungaro SS09.  Platform pumps are from Bally, and her jewelry is from Van Cleef and Arpels.  She was styled by Logan Horne.

Sienna Miller wore a green sequin dress from her own collection, Twenty8Twelve.  Shoes were Nicholas Kirkwood.

Megan Fox wore a black and gold brocade cocktail dress from Dolce & Gabbana.  Megan is styled by Deb Waknin.

Miley Cyrus wore a nude silk cowl neck halter dress from Moschino Cheap & Chic from the SS09 collection.  Shoes are Louboutins.  Jewelry was Loree Rodkin and Beamon for Elizabeth and James.  She was styled by Tara Swennen.

Malin Akerman did a 360 from last night's Spike Awards red hot dress and with a cool Dolce & Gabbana with a white suit, powder blue bustier, and gold strappy sandals from the house.

Taraji Henson wore a black and white strapless mini dress from Roberto Cavalli SS09.  Her shoes were from Bally and clutch Stuart Weitzman.  Her ring was from Lucifer vir Honestus.  She did not work with a stylist for this event.

Kristen Stewart stayed comfy on the carpet with classic Converse!  She paired them with a Yigal Azrouel dress.  She was styled by Tara Swennen.

Anna Faris wore a slightly iridescent black Katy Rodriguez frock, and mixed up the colors with purple Brian Atwood shoes and an emerald green Jimmy Choo clutch.  She was styled by Annie Jagger.

Sofia Vassilieva (pictured with "My Sister's Keeper" co-star Cameron Diaz) wore a dress from Magda Berliner.  Shoes and handbag were from Brian Atwood.  Accessories were a combination of vintage and Forever 21.  She was styled by George Kotsiopoulos.

Can't find any solo shots of Cameron as she was photographed with her co-stars, but she was wearing a colorful Matthew Williamson top paired with J Brand jeans.  Her clutch was from Ferragamo and those shocking blue boots boots were from Guiseppe Zanotti.  Her jewelry was from Ippolita.  She was styled by Rachel Zoe.

Audrina Patridge wore a sequin one-shouldered Joey Tierney Couture dress.  Stylist Joey made the dress with Audrina in mind ... and paired it with Louboutin peep toe nude heels and an Alexander McQueen clutch.  Jewelry was Jane d'Arensbourg stackable rings, a Becca Straus quartz ring, Meredith Khan quartz earrings and bangles from Melissa McClure.

Lauren Conrad wore a Moschino navy and red floral print dress from the FW09 collection.  Shoes were Louboutins.  She was styled by Tara Swennen.

Stephanie Pratt wore a black Ina Soltani dress with python belt from the Fall 09 collection.

Ashley Greene wore a black & white floral print cocktail dress from Dolce & Gabbana with Loree Rodkin jewels.

Darling Abigail Breslin wore a cute combo of Juicy leggins, a D&G tee with a Diesel scarf.  Heels were also Juicy.  Bangles were from Vita and an additional bracelet was CC Skye.  Her ring was from Lia Sophia.  She was styled by Tara Swennen.

LeAnn Rimes wore a very formal, black J. Mendel gown.

Keke Palmer also wore Elise Overland.  Jewelry was from Loree Rodkin.

Keisha Whitaker wore a dress from Herve Leger with Manolo Blahnik shoes.  She carried a Laura Merkin bag and wore jewelry from The Cohen Sisters.  She did not work with a stylist for this event.

Rumer Willis wore a Pucci dress and clutch, and wore shoes from Fendi.  She is styled by Lisa Michelle Boyd.

Lo Bosworth wore a dress from Voom by Joy Han with Louboutin shoes.  Bracelet was from Vita.  She carried a Gucci clutch (not pictured).  Makeup look was by Jake Bailey for Max Factor.

Jenna Dewan wore a Rami Kashou dress with Stuart Weitzman shoes.  She carried a Loree Rodkin clutch.  Jewelry was from Neil Lane.  She was styled by Jessica Paster.

Whitey Port wore a dress from Risto Bimbiloski.  Her jacket and belt were from her own line, Whitney Eve.  Shoes were Manolo Blahnik. She carried a Diane von Furstenberg clutch.

Host Andy Samberg wore a charcoal suit, white dress shirt and slim tie from John Varvatos.

During the show, he wore a black convertible collar jacket with piping from John Varvatos, a black Star USA polo and charcoal Star USA jeans.

Zac Efron wore a white dress shirt from Dior Homme, grey jacket from Neil Barret and tie from Costume National.  Jeans were from April 77 and belt from Diesel.  Vintage shoes are his own.  He was styled by Jenny Ricker.

Channing Tatum wore a John Varvatos military style jacket and black leather boots.

Shia LaBeouf wore a Prada shirt, tie and denim jeans.  He was styled by Wendi + Nicole.

Kellan Lutz wore Levi Capital E "Herser" jeans with a Diesel belt.  Black v-neck tee is from LNA with a vintage button down shirt.  Boots were from Aldo and he sunglasses were from Rayban.  Necklace and cap are his own.  He was styled by Melis Kuris.

Jim Carrey wore an olive suede button down jacket with black courduroy pants and a black dres shirt by John Varvatos.

Zoe Saldana wore an Azzedine Alaia dress and shoes to the UK premiere.  Clutch was YSL and her jewelry was Van Cleef and Arpels.  She was styled by Petra Flannery for the tour.

She was simply stunning in a red Prabal Gurung dress to the Berlin premiere.  Shoes were Pucci and clutch was from YSL.  Jewelry was Bvlgari "Celtaura" bracelet in yellow gold and diamonds & earrings in yellow gold and diamond.   She was styled by Petra for this event as well.

Click through for Paris, Madrid & more pics ...

Penelope Cruz is wearing an Azzedine Alaia gown with a Felix Rey clutch.