Spring '11: Katie Keeps It Classic!

The front-row darling steals the show at the Calvin Klein Collection runway presentation in chic ivory silk dress.

does Carrie proud, mixing her patterns as she heads to the Oscar de la Renta show in a black-and-white diamond blazer over an abstract dress.

Rock royalties collide at Fashion Week! The and the dapper Rolling Stones frontman get in a little face time at party celebrating designer L’Wren Scott.

She might be in one of America’s most sophisticated cities, but that doesn’t stop the from heeding the call of the wild in her zebra-print minidress and black booties while sitting front-row at The Blonds presentation.

The actresses make a striking duo as they sit side-by-side in ladylike dresses at the Calvin Klein Collection presentation, with Julianne in all black and Kerry rocking red.

Saving the best for last, L.A.M.B designer closes her show by taking the stage in an explosion of tribal prints, including a bright-and-bold blazer and harem pants.

The actresses dress the part for J. Mendel’s show, wearing feminine frocks that run the style gamut, from a chic black sheath for Gabrielle to saffron chiffon for Melissa with her jewelry by Monique P an.

The Gossip Girl puts her toned tummy on display at the Proenza Schouler show, pairing the designers’ midriff-baring top with a patterned mini, lace-up ankle booties and a PS1 bag.

It’s a case of the giggles as Szohr and Palermo, both in fab frocks from the line, catch up at the Marchesa presentation in Chelsea.

The City co-star – and Elle Creative Director – Zee sports a dapper look at the Reed Krakoff show, as a chic Moore dared with fashion-forward, furry heels.

All-American model Sims shines in a gorgeously beaded Marchesa mini dress, Grayce by Molly Sims, nude pumps and coordinating Valentino bag as she enters the Marchesa presentation.

Can you believe that Marchesa designer Chapman gave birth just two weeks ago? The always-glamorous Brit catches up with famous fan Lowndes at the Spring 2011 presentation of the line.

Blondes do have more fun! Bowden and Mortimer brightened up the Milly by Michelle Smith show with their perfect smiles and coordinating flaxen locks.

Everyone’s favorite “It” girl Chung is calm, cool and collected in a sea-worthy look at the 3.1 Phillip Lim women’s show at the Lexington Armory.

Supermodel – and newlywed! – Rocha poses like the pro she is at the 3.1 Phillip Lim women’s show, topping her all-black ensemble with an ivory blazer with black lapels.

He’s got a passion for fashion! The brings his flair for the dramatic – check out that neon blazer! – to the Jeremy Scott show. He also attended Tory Burch’s presentation as well as the 3.1 Phillip Lim show the very same day.

Fashion Week’s busiest star caught up with edgy designer Jeremy Scott before his show began.

The Parks and Recreation star hits some of fall’s biggest trends by mixing sequins with shorts as she waits for the Michael Kors show at Lincoln Center to begin.

While her signature “tranny shoes” are hidden under her sweeping navy jumpsuit, the reality star still manages to hoof it to the Michael Kors show at Lincoln Center.

It’s ba-da-boom time in the front row at Nanette Lepore as former Sopranos costars Jamie-Lynn Sigler and Aida Turtorro catch up.

The petite songbird hits a high note at the Nanette Lepore fashion show during Mercedes-Benz fashion week in a draped purple velvet frock.

It’s all “love” for the tennis player, who shows off her athletic form in a clingy red wrap dress as she takes in the Michael Kors show.

Blonsky, Sidibe and Real Housewives of New Jersey’s Manzo share a laser focus on the runway for the OneStopPlus.com fashion show of plus-size styles.