Celebrities filled the front rows during Spring 2011 Fashion Week in New York, London, Milan and Paris. Here, Taylor Swift and Rachel Bilson were pleased with what they saw at the Roberto Cavalli Spring/Summer 2011 show at Milan Fashion Week. After the show, both ladies packed up to head to Paris, where they helped Cavalli celebrate the 40th anniversary of his eponymous label at a chic gala.
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Kim Kardashian and sister Kourtney took in the Jill Stuart Spring 2011 show.
Brian Prahl / Splash News
After making a surprise appearance at the Jay-Z concert at Yankee Stadium earlier that week, Kayne West hit the Jeremy Scott fashion show alongside Kelly Osbourne.
Steven A Henry/WireImage
Fellow fashionistas Sarah Jessica Parker and Rachel Bilson attended the Diane von Furstenberg Spring 2011 show in dresses by the designer.
Michael Buckner/Getty Images for Mercedes-Benz
Rihanna was the center of attention at the the Miu Miu show, accessorizing her graphic-print dress with her color-coordinated nails, lips and hair.
Dominique Charriau/WireImage
Gossip Girl Leighton Meester (in Marc Jacobs) hit the V Magazine bash at New York’s Standard Hotel.
Jamie McCarthy/Getty Images
Singer Jessica Simpson was all smiles at the Project Runway show at New York's Lincoln Center. The star (and designer) was also the guest judge on the season finale.
Bryan Bedder/Getty Images for IMG
30 Rock's Katrina Bowden and Lost's Maggie Grace gathered around designer Christian Siriano backstage at his runway show. The designer also debuted his collection for Payless on all of the models.
Michael Loccisano/Getty Images for IMG
Chanel re-opened its Soho boutique in New York City last night, where designer Karl Lagerfeld stayed close to Gossip Girl star Blake Lively, who donned a glimmering Chanel dress from the Fall 2010 collection for the occasion.
Dimitrios Kambouris/Getty
Claire Danes sat with 90210 star Shenae Grimes at the Z Spoke by Zac Posen show.
Michael Loccisano/Getty Images for IMG
Kerry Washington (second from left) and Isabel Lucas (second from right) joined Moore and Holmes in the front row at Calvin Klein.
Patrick McMullan/PatrickMcMullan.com
Following her "African butterfly pattern"-inspired L.A.M.B. runway show, GwenStefani
Billy Farrell/BFA/Sipa
Jason Wu posed backstage with friend Diane Kruger (in Jason Wu) at his Spring 2011 runway show.
Dimov/McMullan/Sipa Press
After debuting the Twenty8Twelve Spring 2011 collection earlier in the day, Sienna Miller sat back to watch the Matthew Williamson show at the Battersea Power Station in London.
GF/bauergriffinonline.com
Marc Jacobs posed with fellow designer Diane von Furstenberg and stylist Rachel Zoe after showing his '70s-inspired collection.
Dimitrios Kambouris/Getty Images
Following his Z Spoke show, Zac Posen hung out with with Parks and Recreation star Rashida Jones at the Lincoln Center tents.
Andrew H. Walker/Getty Images for IMG
Jessica Szohr and Olivia Palermo wore dramatic Marchesa dresses for the label's Spring presentation.
Theo Wargo/WireImage for Marchesa
Fashion Week regular Alexa Chung attended the Mulberry Spring 2011 show, donning the label's polka-dot dress and Lily purse. Chung later visited the show's after-party at the Soho House, where she told us she was glad to have finished presenting her Madewell collection: "It's good to be able to let loose a bit and party now."
Lorenzo Santini/WireImage
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Taylor Swift and Rachel Bilson
Celebrities filled the front rows during Spring 2011 Fashion Week in New York, London, Milan and Paris. Here, Taylor Swift and Rachel Bilson were pleased with what they saw at the Roberto Cavalli Spring/Summer 2011 show at Milan Fashion Week. After the show, both ladies packed up to head to Paris, where they helped Cavalli celebrate the 40th anniversary of his eponymous label at a chic gala.
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Kim and Kourtney Kardashian
Kim Kardashian and sister Kourtney took in the Jill Stuart Spring 2011 show.
Kelly Osbourne and Kanye West
After making a surprise appearance at the Jay-Z concert at Yankee Stadium earlier that week, Kayne West hit the Jeremy Scott fashion show alongside Kelly Osbourne.
Advertisement
Sarah Jessica Parker and Rachel Bilson
Fellow fashionistas Sarah Jessica Parker and Rachel Bilson attended the Diane von Furstenberg Spring 2011 show in dresses by the designer.
Advertisement
Rihanna
Rihanna was the center of attention at the the Miu Miu show, accessorizing her graphic-print dress with her color-coordinated nails, lips and hair.
Advertisement
Leighton Meester
Gossip Girl Leighton Meester (in Marc Jacobs) hit the V Magazine bash at New York’s Standard Hotel.
Advertisement
Jessica Simpson
Singer Jessica Simpson was all smiles at the Project Runway show at New York's Lincoln Center. The star (and designer) was also the guest judge on the season finale.
Advertisement
Katrina Bowden, Christian Siriano and Maggie Grace
30 Rock's Katrina Bowden and Lost's Maggie Grace gathered around designer Christian Siriano backstage at his runway show. The designer also debuted his collection for Payless on all of the models.
Advertisement
Karl Lagerfeld and Blake Lively
Chanel re-opened its Soho boutique in New York City last night, where designer Karl Lagerfeld stayed close to Gossip Girl star Blake Lively, who donned a glimmering Chanel dress from the Fall 2010 collection for the occasion.
Advertisement
Claire Danes and Shenae Grimes
Claire Danes sat with 90210 star Shenae Grimes at the Z Spoke by Zac Posen show.
Advertisement
Julianne Moore, Kerry Washington, Isabel Lucas and Katie Holmes
Kerry Washington (second from left) and Isabel Lucas (second from right) joined Moore and Holmes in the front row at Calvin Klein.
Advertisement
Gwen Stefani and Gavin Rossdale
Following her "African butterfly pattern"-inspired L.A.M.B. runway show, GwenStefani
Advertisement
Jason Wu and Diane Kruger
Jason Wu posed backstage with friend Diane Kruger (in Jason Wu) at his Spring 2011 runway show.
Advertisement
Sienna Miller
After debuting the Twenty8Twelve Spring 2011 collection earlier in the day, Sienna Miller sat back to watch the Matthew Williamson show at the Battersea Power Station in London.
Advertisement
Diane Von Furstenberg, Marc Jacobs, and Rachel Zoe
Marc Jacobs posed with fellow designer Diane von Furstenberg and stylist Rachel Zoe after showing his '70s-inspired collection.
Advertisement
Zac Posen and Rashida Jones
Following his Z Spoke show, Zac Posen hung out with with Parks and Recreation star Rashida Jones at the Lincoln Center tents.
Advertisement
Jessica Szohr and Olivia Palermo
Jessica Szohr and Olivia Palermo wore dramatic Marchesa dresses for the label's Spring presentation.
Advertisement
Alexa Chung
Fashion Week regular Alexa Chung attended the Mulberry Spring 2011 show, donning the label's polka-dot dress and Lily purse. Chung later visited the show's after-party at the Soho House, where she told us she was glad to have finished presenting her Madewell collection: "It's good to be able to let loose a bit and party now."
