Mary-Kate Olsen ran errands around NYC wearing a gray hat and striped trousers.

Cameron Diaz donned a sizzling LRD from Oscar de la Renta at the Shrek Forever After premiere in LA.

Tick, tock . . . It's only hours before tonight's Gossip Girl. You ready for the drama? Poor S, her relationship with Nate is on the rocks and tonight's rumored Gossip Girl gossip bomb is supposed to make matters even worse. For the sad occasion, the Upper East Sider rocked a gorgeous Yigal Azrouel ruched jersey dress, accessorizing with a statement necklace by Carla Reiter and MCL by Matthew Campbell bracelet. If you're gonna go down, you might as well go down in style, right?

Get the rest of this week's Gossip Girl outfits via CelebStyle.com.

Photo courtesy of the CW

Rachel Bilson made her way through LAX looking as stylish as ever. She tried to hide her face under Ray-Ban Wayfarer sunglasses and a striped fedora, but her cute ensemble consisting of light wash skinny jeans, an oversize stripe long sleeve top, (very similar to this one by Vince) black suede booties and a blue blazer was a true Bilson giveaway. Add some stylish carry ons and you'll have a like look in no time. Shop now.

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Kristin Cavallari broke out her LA cool style to attend Wango Tango at the Staples Center. She kept things basic in black, white, and nude, wearing a fringe bottom top with denim cutoff shorts and studded Yves Saint Laurent Essentielle sandals. A crochet cross-body purse and layers of gold jewelry completed the look. Shop her exact shoes and other like items now!

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As this season of Gossip Girl comes to an end, Blair graces us with one last look to keep us waiting for next time. Her purple printed dress is perfectly vibrant, but bright yellow Christian Louboutin pumps, a lime green cape, and a yellow Longchamp bag (available here in brown) make things colorful enough for Blair. Check it all out here.

Photo courtesy of The CW

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• Vena Cava will sell random cool stuff at its online garage sale — Refinery 29
• Abaeté quietly shutters — Fashionista
• David Walliams and Lara Stone get married in style — Metro UK
• Amanda Seyfried's favorite things — InStyle
• Kate Beckinsale dons beautiful Balmain — Red Carpet Fashion Awards
• Kelly Osbourne shows off her new figure in Matthew Williamson — People
• Trending now: animal brooches — Lucky
• Aquascutum bags a new It girl: Jo Sykes — Vogue Daily
• Alexander Wang Darcy hobo — Bag Snob
• Judith Leiber has a super sale for animals — Stylelist
• Naomi Campbell's layering act — The Cut
• UNIQLO UJ Summer 2010 lookbook — Nitrolicious