Tiffany & Co. held its Blue Book Ball in NYC last evening, and celebrities paid homage to the brand's iconic boxes in shades of beautiful blue. Kate Hudson chose a gorgeous Reem Acra gown in a strikingly similar Tiffany-blue hue. Both Jessica Biel and Michelle Williams opted for deeper navy hues in Elie Saab and Katie Ermilio, respectively, and Gwyneth Paltrow took time off her Iron Man 3 duties to attend the ball in a steel-blue Ralph Lauren gown. Watch on for all our coverage of the glamorous night! On Allison McNamara: Club Monaco top, Bebe shorts, H&M jacket, Vita Fede bracelets.
SJP Pops Up in Italy For a Fashionable Night Out With Covered-Up Ke$ha
Sarah Jessica Parker donned a pair of bright blue shoes to hit the red carpet in Rimini, Italy, last night. She stepped out overseas to attend Calzedonia's show, Forever Together, and was joined by other notable names like model Poppy Delevingne, a modestly dressed Ke$ha, and, new to the model scene, Ireland Baldwin for the fashionable night out.
Before popping up in Italy, Sarah Jessica spent quality time with her girls at home in NYC. On Monday, she shared sweet hugs with her twin daughters, Tabitha and Loretta Broderick. They were back together following SJP's trip to Toronto earlier this month, when she was on hand to launch Target's first Canadian store with the help of Blake Lively.
The L.K.Bennett Tea Party Supplies Us With Three Ultrapretty Looks
L.K.Bennett — aka Kate Middleton's go-to shoe label — held a tea luncheon in LA, and invited British beauties Poppy Delevingne and Rosamund Pike, as well as Revenge's Christa B. Allen. To dress the part of "ladies who lunch," the ladies brought their styling A-game in equally fresh Spring ensembles. Delevingne stepped out in a pastel green maxidress, which featured a thigh-high slit, then completed her look with a chunky gold necklace, a lilac L.K.Bennett clutch, and gold gladiator sandals. Pike chose a classic pairing — an LWD by L.K.Bennett and black pumps — while Allen mixed pastels and brights via her Oday Shakar floral chiffon mini. Now, it's time to decide: which outfit gets your best-dressed vote?

Let's Be Social: The Week's Stylish Social-Media Snaps
While some of our favorite stars partied down at the Oscars, others were taking it easy and getting to work. Blondes just wanted to have fun at the Chanel event, with Poppy Delevingne, Kate Bosworth, and Rosie Huntington-Whiteley all having a blast while dressed to the nines. Coco Rocha was in an equally good mood while celebrating the launch of Banana Republic's latest Mad Men-inspired capsule collection, and Chanel Iman shared a glamorous snap with Halle Berry at the Vanity Fair fete. Alexa Chung happened to be exhausted after a L'Oréal photo shoot and tried to get some shut-eye on the set.
Click through now to see the rest of this week's cutest celebrity candids, and don't forget to follow POPSUGAR Fashion on Instagram, Facebook, and Twitter!
Let's Be Social: The Week's Stylish Social Media Snaps
This week, we got another stylish glimpse into the lives of some of our favorite chic celebrities through social media. Models like Chanel Iman, Miranda Kerr, and Chrissy Teigen enjoyed downtime with friends and family, while Karlie Kloss and Cara Delevingne kept on trucking through to London Fashion Week. Bar Refaeli showed off her latest magazine cover, and Coco Rocha rocked a colorblocked look (including a cool monogrammed clutch). Emmy Rossum picked up a festive piñata during a press trip to Mexico City, and fellow actresses Vanessa Hudgens and Ashley Benson shared their red-carpet snaps while promoting Spring Breakers in Paris.
Click through now to see the rest of this week's cutest celebrity candids, and don't forget to follow POPSUGAR Fashion on Instagram, Facebook, and Twitter!
Who Wore It Best? Flaming Orange Lipstick

This week, celebrities made the case for ditching red lipstick in favor of a more shocking orange. Even though the season lends itself to more moody hues, these ladies prove there is room for brights year-round. Coco Rocha tried out a carrot color on her lips paired with a sleek cat eyeliner, while Poppy Delevingne wore a neon tangerine lipstick to pick up the bright design in her sequined top. Emma Stone wore a red-orange lip hue, which brought warmth to her fair complexion and blond updo. Whose lip color do you like best for a mid-Winter pick-me-up?
It's a Wrap — See All the Celebrities at New York Fashion Week
Plenty of celebrities flocked to the fashionable fun of this year's New York Fashion Week. Miley Cyrus showed off her abs in a crop top at the Marc Jacobs show, while Olivia Wilde and Jessica Chastain sat front row to take in the Calvin Klein collection. Elizabeth Olsen and Liv Tyler linked up at Proenza Schouler, and Zoe Saldana took a seat next to Jada Pinkett Smith and Willow Smith for Michael Kors.
Click through for more famous fashionable faces!
Sister Act: Which Delevingne's New Video Is Most Outrageous?

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Thank goodness Poppy and Cara Delevingne are so comfortable in front of the camera. Both sisters are the stars of new videos that might be the most provocative clips we've seen so far this year.
Poppy, the budding actress, is the protagonist in an ever-so-slightly NSFW short for Agent Provocateur called "Valentine's Night." She gets locked outside of her home in nothing but lingerie after her screeching cat sets off her car alarm. She then seductively asks a stranger for some assistance finding the poor lost feline.
Meanwhile, Cara seems to have found the cat Poppy was looking for and uses it as a prop while lip-synching Shania Twain's "That Don't Impress Me Much" in a bustier for Love magazine. She looks plenty confident, but would her occasional glances at cue cards be more endearing if she weren't wearing that black eye mask?
Countdown to NYE: Nab Poppy Delevingne's Cool Blue Shimmer

New Year's Eve and sequined dresses have become synonymous with one another, but if you're looking for a refreshing twist, then look no further than the party girl herself: Poppy Delevingne. The jet-setting beauty put her signature cool tilt on the shimmery finish via a dark navy minidress paired with an edgy tweed jacket. We love the sleek black-and-navy color combo, which Poppy rounded out with a statement studded clutch and lace-up boots. We think it's the perfect dance-the-night-away party outfit, and if you do too, then shop our similar picks below and be prepared to ring in the new year in major style.
Best of 2012: Who's This Year's Breakout Fashion Star?
While we're always loyal to our veteran fashion girls — Diane Kruger, Mary-Kate and Ashley Olsen, and Alexa Chung, to name a few — 2012 brought a whole new exciting crop of style stars whose fashion sense we just couldn't get enough of. British model Poppy Delevingne perfected the marriage between sophisticated and youthful dressing (and she always makes the demure hemline look so damn cool). Speaking of perfecting things, Solange Knowles is a pro at mixing prints and she did it ever so fabulously time after time this year. Nina Dobrev wasn't afraid to take risks on the red carpet — so she always stood out from the pack — plus, have you seen those mile-long legs? Ashley Madekwe was another star that made her mark in fashion this year. Not only does she have her own personal style blog, but she makes both day and night dressing look equally and insanely effortless. And finally, Allison Williams captured our attention with her bold dress choices, and her megawatt smile — not to mention her breakout role on our new TV obsession Girls. Now that you know a little bit about the fabulous nominees for breakout star of the year, it's time to cast your vote below.



