Emma Roberts wore

Trousers:  DL1961

Blazer Dylan Alexa

She was styled by Emily & Merritt.

Emma Roberts wore a dress from Monique Lhuillier with Brian Atwood's "Electra" booties from his F/W09 collection.  Her clutch was from Swarovski.  She was styled by Maude.

Zoe Saldana wore a Pucci dress from the F/W 09 collection.  Shoes were Brian Atwood's F/W 09 "Wicked" style in black leather.  Jewelry was from Neil Lane.  She was styled by Petra Flannery.

Leighton Meester wore YSL.  Dress was S/S 09 kimono sleeve dress with back bows, and the cage ankle bootie that has proved extremely popular this season.  Leighton was styled by Logan Horne.

Michelle Monaghan caused a stir in her F/W 09 runway collection Versace dress, Judith Leiber clutch and Tania Spinelli shoes.  Photographers went crazy!  Michelle was styled by Mary Alice Stephenson.

Sophia Bush stepped out in a sexy Herve Leger dress and shoes accessorized by a ring and earrings by Julie Cohen for SWITCH.  Meow!  She did not work with a stylist for this event.

Heidi Klum wore a Jasmine di Milo dress, Martin Katz jewelry, and Christian Louboutin pumps.  She is styled my Maryam Malakpour.

Tori Spelling looked pretty in a Philosophy di Alberta Ferretti dress and Christian Louboutin heels.  She accessorized with pieces from her own Tori Spelling for HSN jewelry collection.

Winona Ryder wore a Fendi dress, Jil Sander shoes and a Tod's clutch.  She completed the look with a Jennifer Behr headband and jewelry from Neil Lane.  Winona is styled by Lisa Michelle Boyd from The Wall Group.

Amanda Bynes chose a Herve Leger dress, YSL "Tribute" sandals in gold, a Tammi Lyn clutch, and a Judith Ripka ring.  She did not work with a stylist for this event.

Emma Roberts turned up the heat in a black strapless Versace dress with zipper detail, Jimmy Choo shoes, and Me and Ro earrings.  Necklace is Emma's own.  She was styled by MAUDE.

Anna Torv wore a black silk Jenni Kayne "V" dress with gold beaded waist.  Jewelry was Jenny Kayne Irit yellow gold & diamond earrings and rose-cut diamond square ring.

Cameron Diaz looking cute in a Michael Kors top & belt.  Jeans are 7 for All Mankind.  DSquared2 shoes, LAI bag and ring from Alexis Bittar.  She wore a bracelet from Gemma Redux. Cameron was styled by Rachel Zoe.

Miley Cyrus is wearing a dress from Sheri Bodell.  Jewelry is from Coomi and shoes are Joie.  Miley was styled by Tara Swennen.

Amber Valetta was wearing a dress from Preen with a Chanel clutch ...  styled by Lia Davis.

Demi Lovato is wearing a dress from Ina Soltani with YSL heels.  Bracelets are Swarovski and diamond ring and hoop earrings are Rosalina Jewelry.  Demi was styled by Michelle Tomaszewski.

Emma Roberts wore a D&G orange strapless dress with black lace overlay.  Shoes were Jimmy Choo booties and her ring & cuff were from CC Skye.  Emma was styled by MAUDE (Emily Current & Merritt Elliott).

America Ferrara wore a J. Mendel dress with Jimmy Choos.  Bracelets were H. Stern's Neptune Bracelet and Stars Deco Bracelet in 18K gold with diamonds.  Her ring was one-of-a-kind from the Stern Star Collection in 18K gold with white & black diamonds.  She was styled by Annabel Tollman.  Her makeup look was created by artist Vanessa Scali.

Keke Palmer wore an Elise Overland stretch-leather sheen minidress to the awards.  Bracelets were platinum and diamond from Neil Lane.  Earrings were 18 carat oxidized gold and diamond Strburst from Platt Boutique.

Ashley Tisdale wore a dress from Akiko Ogawa.  Ashley was styled by Simone Harouche.

Megan Fox wore J Brand jeans with a Thomas Wylde shirt & scarf.  The jacket was PRPS.  Megan wore Loree Rodkin's gothinc point ring with 15 carats of multi-colored diamonds and center moonstone.  Megan was styled by Deb Waknin.

Presenter Lily Collins wore a S/S 09 one-shouldered blue cocktail dress, nude leather heels and a gold paillette clutch - all from Versace.

Some of the boys!

The Jonas Brothers ...

Nick is wearing a Givenchy jacket, Paul Smith shirt, Lova jeans, Esquvel shoes and a Nagual wallet chain.

Kevin is wearing a YSL scarf, Phillip Lim shirt, Martin Margiela pants and Jack Purcell Converse shoes.

Joe is wearing an LNA t-shirt, Ever leather jacket, April 77 jeans and YSL sneakers.

They were styled by Michelle Tomaszewski.

Chris Pine wore a gray pinstriped peak lapel button-down vest from John Varvatos.