Serena, Georgina and Olivia (that's Duff's character) left the upper-east side for fashion week at Bryant Park in mid-town this weekend.

And although Hil, who carried a chic Goyard clutch, and Michelle look like they're trying too hard in grown-up dresses that don't exactly flatter their normal-girl figures, could Blake have tried a little harder? At least she threw that sequined jacket over the jeans, tank and Louboutins, but she IS supposed to be a CW fashion icon!

Speaking of CW fashion icons...

On the one hand, I love it! Especially from the front. And I love the color on her. (The umbrella kinda makes her skin glow, but in a nice way!) From the back, however, I'm not so sure. Michelle Trachtenberg kinda has a Mischa Barton thing going on with her thighs, doesn't she?

Not that I'm one to judge! Check out all the sexiness on the Gossip Girl set in the gallery below...

Our favorite bad girl (well, only on tv), Michelle Trachtenberg is back in LA after filming several episodes of Gossip Girl in New York.

The cutie turned the cameras on the photogs while out shopping at Milk in Los Angeles.

She may be an LA girl, but we cannot wait to see what kind of trouble she gets into in New York next season!

We love seeing people we already love come together! Gossip Girl's (loves it) Michelle Trachtenberg and She's The Man's (loves it more!) Amanda Bynes were spotted hanging out at Fashion Week in NYC together. Think Michelle swapped "Blake Lively took soooo long combing her hair in the dressing room" stories for Amanda's Doug Reinhardt dating deets?

And by b*tch, we of course mean Michelle Trachtenberg!

Gossip Girl fans rejoice - Georgina is returning to the Upper East Side "for multiple episodes," a source confirms to Entertainment Weekly. Last time we saw Serena's maniacally manipulative rival, Blair was sending her off to a place "where she can do no harm."

This is TOTALLY the best news of 2009 so far! Georgina was kinda my fave character on GG... aside from Blair, of course!

XOXO.

Is it bad that she was kinda our fave character on the first season of Gossip Girl?

Mischa Barton was kinda sorta offered the part first and, while she might've looked more appropriate for the role, Michelle Trachtenberg was brillz! Here she is out and about town last night with the boyfriend. Cute couple!

Photos courtesy GettyImages

The stars came out to shine at the Catherine Malandrino Maison Grand Opening and 10 Year Anniversary - hosted by singer Mary J Blige and Catherine herself!

Also in attendance? Dita Von Teese in a nude (ha ha ha) dress and the voluptuous Rosario Dawson...

Then there's Michelle Trachtenberg, who we LOVED on Gossip Girl, but, er, she's lookin' a little pasty here. Not to mention those cankles!

You've seen the morning after, now check out the night of the big bash!

In addition to HSM co-stars Vanessa, Monique Coleman, Ashley Tisdale with boyfriend Jared Murillo, the guest list reads like a veritable who's who of the new, young hot Hollywood.

Michelle Trachtenberg attended with her man, Amanda Bynes showed up with a pal, and Brittany Snow and pop star sisters Aly and AJ also headed to Pace, where Zac rang in his 21st.