Isabel Lucas wore a vintage Chanel Haute Couture dress with Lanvin shoes.  Her clutch (not pictured) was from Fendi.  Dior Fine Jewelry completed the look.

Taylor Momsen wore a blush satin minidress from Dolce & Gabbana with sandals from Tania Spinelli.  Her jewelry was from Eddie Borgo.

Kristin Cavallari wore a pink Zac Posen dress with shoes from Dolce Vita.  Her earrings were chocolate diamond hoops from Le Vian, and ring was diamond and gold cocktail ring.  Her clutch was from Chlorine vintage in LA.  She was styled by Taylor Bass.

Brenda Song wore a dress from Ports 1961 with Christian Louboutin shoes.  Her long necklace was from Joan Hornig and bracelets were from Nicole Richie's House of Harlow line.  She was styled by Eric Archibald.

Taylor Momsen wore a blouse from Rag & Bone and a jacket from Mikhael Kale.

Jessica Lowndes wore a Betsey Johnson dress with Bebe shoes and a Lia Sophia dress.

Shenae Grimes wore a Jack & Gill dress with Aldo shoes.  She does not work with a stylist.

Jessica Stroup wore a Brian Reyes dress with D&G shoes. She carried a Sergio Rossi bag and wore Neil Lane jewels.  She is styled by Lia Davis.

Leighton Meester wore a dark brown Jil Sander jacket and shorts with Brian Atwood shoes and Bvlgari shoes.  She is styled by Logan Horne.

Blake Lively wore an ADAM jumper with Christian Louboutin shoes.  She does not work with a stylist.

Katie Cassidy wore a top from L'Agence paired with a black leather vest from Anzevino and Florence.  Her harem pants were from American Apparel and belt from Emily Noelle.  Shoes are Camilla Skovgaard.  She is styled by Moses Moreno.

Nina Dobrev wore a summery BCBG dress.

AnnaLynne McCord wore a sexy D&G LBD.  She does not work with a stylist.

Ashlee Simpson wore a DSquared2 top & skirt with a Lanvin necklace and Lanvin shoes.

Later in the evening, Ashlee wore a vintage Chanel dress with John Galliano heels and Loree Rodkin jewelry to the private party.

Jessica Stroup changed into another Brian Reyes dress, a racer-back dress for the evening party.

Blake Lively changed into a Ralph Lauren Collection ensemble.