NY Fashion Week: Days 7 & 8

Eva Mendes and Kate Beckinsale

Hollywood beauties Eva Mendes and Kate Beckinsale made their Fashion Week debut at the Calvin Klein show inside the Fashion District showroom. Thirty-five models walked the windy runway showing off designer Francisco Costa's latest collection which included pops of silver and gold in a sea of black ensembles.

-With reporting by Bronwyn Barnes, Liz Carmona and Grace Lee

Joy Bryant and Claire Danes

"He's always been a talented designer, but he's just getting better and better," said Joy Bryant of longtime friend Zac Posen at his Fall 2009 runway show. Bryant shared the front row with fellow Posen loyalist Claire Danes-both looking polished in his designs. What does Danes admire most about the designer? "His imagination, his daring and constant relentless desire to push himself throughout."

Nicole Richie and Alicia Keys

Nicole Richie

and Alicia Keys added even more stunning star power to Zac Posen's front row. Posen created quite the formal affair as five pianists (a brother and sister group called 5 Browns), clad in tuxedos and ball gowns, took to the runway performing classical ballads on Steinway grand pianos while models elegantly floated down the catwalk in whimsical chiffon, metallic and floral-print gowns.

Joshua Jackson and Diane Kruger

Recent New York transplants Diane Kruger and Joshua Jackson were a well matched pair at Tommy Hilfiger, sporting similar scarves, dark jackets and shades. The duo kissed as they waited for the catwalking to begin and exchanged thoughts about the classic American styles throughout the show. "I liked that [the clothes were] very simple, very real, but with a bit of a twist," said Kruger. "There was a gold lame cocktail dress that was classic in terms of style, but the lame really made it stand out."

Selma Blair

"What I love about Tommy's clothes is that they're just so easy to slip into," said Selma Blair, looking mod in a white dress and black patent-leather accessories on her way into Tommy Hilfiger's show. Another person who appreciated the ease of wearing Hilfiger's clothes was Natasha Bedingfield. "I only got two hours of sleep last night because I was out partying. But that's Fashion Week, isn't it?" said the singer. What will she do to recuperate? "I'm leaving for Cabo tonight!" she exclaimed.

Rachel Bilson

"Brian is a good friend, so I'm happy I could come to support him," said Rachel Bilson, who gave a standing ovation after admiring the subtle black-and-white graphic-print dresses at Brian Reyes. Bilson also pointed out a pair of trousers and a metallic green dress to her stylist, Nicole Chavez, during the show.

Jamie-Lynn Sigler

After taking in Rebecca Taylor's fashion show at the tents in Bryant Park-"This is the first and only show I'll be attending this week," said Jamie-Lynn Sigler-the actress hosted an after-party for the designer at AVA Lounge in the Dream Hotel.

Tori Spelling and Christian Siriano

Arriving with a full camera crew in tow, reality TV-star Tori Spelling turned heads while taking her seat at Project Runway winner, Christian Siriano's show. The 90210-alum (wearing a dress by the designer) whipped out her Flip video camera and recorded the models stomping down the runway in Siriano's monochromatic brown confections and sky-high heels.

Mary J. Blige, Mena Suvari and Catherine Malandrino

Singer Mary J. Blige and actress Mena Suvari came out to support designer Catherine Malandrino at her Fall 2009 fashion show. Malandrino showed a surrealist-themed collection of long and lean dresses and fur-trimmed jackets, ironically called "Over the Rainbow," at the famous Rainbow Room in N.Y.C.

Sophia Bush and Michelle Trachtenberg

The Malandrino show also brought out One Tree Hill's Sophia Bush and Gossip Girl's Michelle Trachtenberg. After attending the Herve Leger by Max Azria show, the jetsetting Bush flew to North Carolina to shoot scenes for her show, only to turn right around and head back to N.Y.C. for Malandrino.

Blake Lively and David Lauren

Before the Ralph Lauren show began, Blake Lively (in Ralph Lauren) chatted enthusiastically with other front row guests, including Polo Ralph Lauren S.V.P. David Lauren. "I'm a huge fan. I wear Ralph all the time," said Lively. The Gossip Girl star smiled as she watched the elegant collection of sleek gowns, tweed suiting and winter-white separates pass by. "I loved the black evening gown that started the show," she said afterward, "and you might see me in one of the white looks at the end."

Heidi Klum

Project Runway

host Heidi Klum looked hot in a pink suit from Matthew Williamson's Spring 2009 collection (and Stephen Webster jewelry) when she came down the catwalk to announce the start of the show. "This will be a little different. We're all in a bit of limbo right now," she told the crowd. None of the Season 6 episodes have aired, so the three finalists remained a mystery throughout the fashion show.

Erin Lucas and Sarah Wynter

The City

's Erin Lucas and actress Sarah Wynter helped Mackage celebrate their 10-year anniversary at the line's Fall/Winter 2009 runway show. The collection featured rock n' roll-inspired outerwear for both men and women.