Last Night's Look: Love It or Leave It?

REESE WITHERSPOON

America's sweetheart looks more like America's bombshell in a strapless LBD with an embellished panel along the hemline. She keeps the look monochromatic – right down to her Tiffany & Co. clutch and smoky eye makeup – at Benjamin Millepied's L.A. Dance Project Benefit in L.A.

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Last Night's Look: Love It or Leave It?

JENNIFER LOPEZ

Max? Emme? Are you under there? J.Lo could easily have snuck in her twins under that major Christian Dior skirt, which she pairs with an off-white cashmere top (also by the designer) and black Brian Atwood pumps at the unveiling of her star on the Hollywood Walk of Fame.

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Last Night's Look: Love It or Leave It?

SANDRA BULLOCK

Breaking News: Sandra is not wearing all black. After a string of dark ensembles, she picks a purple Prabal Gurung dress with cutouts at the shoulders and a touch of sheer, which she accessorizes with black-and-white cap-toe heels (by Casadei for Prabal Gurung) at the premiere of The Heat in Boston.

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Last Night's Look: Love It or Leave It?

NATALIE PORTMAN

Miss Dior surprises no one by wearing the brand head-to-toe via a flowing coral dress with a flouncy asymmetrical hemline, plus two-tone heels, to her husband's L.A. Dance Project Benefit in L.A.

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Last Night's Look: Love It or Leave It?

OLIVIA MUNN

The Newsroom star clearly loves her bright colors. She teams a hot-pink pencil skirt with an on-trend spotted blouse for a visit to SiriusXM Studios in N.Y.C.

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Last Night's Look: Love It or Leave It?

CHRISSY TEIGEN

The supermodel shows of her freshly highlighted hair (and mile-long legs) in cream short-shorts, a white tank and a major statement necklace at the Gillette Venus Step Up & Step Out Tour in L.A.

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Last Night's Look: Love It or Leave It?

RASHIDA JONES

Let's play a little game called, "How many items can one actress wear at once?" Rashida is the obvious winner in a printed silk skirt, black tee, structured blazer, distressed ankle boots, a gray satchel and a whole bunch of delicate jewelry at Benjamin Millepied's L.A. Dance Project Benefit in L.A.

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Last Night's Look: Love It or Leave It?

OCTAVIA SPENCER

You loved Octavia's last lacy look, and we have a feeling you're going to feel the same way about this one. The actress flatters her figure in a black-and-navy Tadashi Shoji frock, plus Gilan jewels, at a screening for Fruitvale Station in Oakland, Calif.

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Last Night's Look: Love It or Leave It?

KATE MOSS

It's hard to believe this is the same Kate who recently stepped out in this. The actress goes for a (much) more covered-up look in a full-skirted dress with a sheer black overlay at The Hoping Foundation's Rock On benefit in London.

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Last Night's Look: Love It or Leave It?

ELSA PATAKY

Who needs a hot husband like Chris Hemsworth at your side when you have a head-turning dress like this one? (Actually, on second thought, can we have both?) The actress stuns in the embellished Zuhair Murad gown at the Yo Dona awards in Madrid.

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Last Night's Look: Love It or Leave It?

KHLOÉ KARDASHIAN ODOM

Aunt Khloé shows off her sartorial skills in the biggest color of the season – mint green. She pairs her La Marque short shorts with a sheer printed Equipment blouse and blue Giuseppe Zanotti platforms at an event celebrating the new Kardashian Sun Kissed Line in Burbank, Calif.

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Last Night's Look: Love It or Leave It?

LEA MICHELE

The Glee star's look might be sophisticated on top, with a structured Helmut Lang blazer and red Brochu Walker shirt, but she brings out the sexy on the bottom in a O by Kimberly Ovitz mini skirt. Lea completes her ensemble with a blinged-out Switch necklace at the FEED USA and Target launch event in N.Y.C.

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Last Night's Look: Love It or Leave It?

MICHELLE OBAMA

The First Lady continues to make Americans lust after her wardrobe in this Carolina Herrera full-skirted patterned dress with bow accents at a dinner in honor of President Obama in Berlin, Germany.

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Last Night's Look: Love It or Leave It?

SOFIA VERGARA

The Modern Family star wears her bombshell uniform: a curve-hugging cutout dress, sparkly pumps, diamond danglers and a matching cuff (both by Lorraine Schwartz) at the Discover Many Hopes Gala in N.Y.C.

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Last Night's Look: Love It or Leave It?

SOPHIA BUSH

Is this the new summer suit? Sophia pushes the fashion envelope in a black star-printed smoking jacket with white piping (that reminds us a bit of Hugh Hefner) and matching bottoms (both Smythe), which she teams with red accessories at the FEED USA and Target launch event in N.Y.C.

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Last Night's Look: Love It or Leave It?

HEIDI KLUM

The America's Got Talent judge chooses a sexy Thomas Wylde pencil skirt with zipper detailing at the front, a solid button-down blouse and classic pumps at the Shutterfly by Design event in N.Y.C.

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Last Night's Look: Love It or Leave It?

NAYA RIVERA

Someone loves her sparkles. Naya accessorizes her bedazzled Naeem Khan mini with gold pumps and a chic beehive at InStyle's launch party for the new Elizabeth and James handbag collection in West Hollywood.

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Last Night's Look: Love It or Leave It?

ASHLEY MADEKWE

Going for a more toned-down look at the same InStyle event in West Hollywood, the Revenge actress makes her boyfriend jeans feel fashion-y thanks to a loose floral top, black strappy sandals and a bright-blue clutch.

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Last Night's Look: Love It or Leave It?

JORDANA BREWSTER

Jordana shows she isn't afraid of mixing prints in this coordinating shirt and shorts combo by Diane von Furstenberg, plus Coomi jewels and Christian Louboutin studded sandals at the Everyday Effect consume event in N.Y.C.

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Last Night's Look: Love It or Leave It?

GWYNETH PALTROW

The actress gives Superman a run for his money with this winged Prabal Gurung blouse, which she pairs with flared trousers to deliver the keynote speech at the Licensing Expo in Las Vegas.

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Last Night's Look: Love It or Leave It?

MADONNA

Did Madonna run away and join the circus? No, she's just channeling a ring leader in a three-piece Dolce & Gabbana suit complete with an ivory bow tie, top hat, blinged-out Jacob & Co. glove (yes, singular) and a white carnation at the world premiere of Madonna: The MDNA Tour in N.Y.C.

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Last Night's Look: Love It or Leave It?

ASHLEY GREENE

Lest she be the last woman in Hollywood to wear a floral crown, Ashley pairs the hippie headpiece with a yellow mini featuring cutout detailing at the sides, barely-there Tory Burch sandals and a bright coral pout at the Oakley Bali Pro surfing competition in Indonesia.

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Last Night's Look: Love It or Leave It?

KELLY OSBOURNE

We think Madge would approve. Kelly goes for leather-on-leather-on-leather-on-leather with a studded headband, moto jacket, black leggings and pointy-toe pumps, the perfect choice for the world premiere of Madonna: The MDNA Tour in N.Y.C.

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Last Night's Look: Love It or Leave It?

KRISTEN WIIG

Kristen proves her sartorial skills may be as sharp as her comedic timing in this futuristic Prabal Gurung black-and-white dress with an asymmetrical hemline, worn with a metallic geometric clutch and Pierre Hardy heels to the premiere of Imogene in Paris.

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Last Night's Look: Love It or Leave It?

EMILY VANCAMP

Her character's not afraid of making a scene and Emily's not afraid of making a style statement. The Revenge star picks a bold printed Preen midi, and adds a severe top knot and a bright pink lip at Clinique's Dramatically Different Party in N.Y.C.

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Last Night's Look: Love It or Leave It?

VANESSA HUDGENS

Coachella is over, but Vanessa's boho style is forever. She surprises no one by selecting a paisley-printed Blu Moon jumpsuit, brown belt, chunky sandals and a funky MaLi Beads necklace for the Oakley Bali Pro surfing competition in Indonesia.

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Last Night's Look: Love It or Leave It?

KELLY ROWLAND

Another Kelly in leather! The singer gives her bright-red second-skin pants a summertime feel (yes, it's possible) with a graphic tank and matching bold pumps while promoting her new album, Talk a Good Game, at Best Buy in N.Y.C.

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Last Night's Look: Love It or Leave It?

STACY KEIBLER

George Clooney's leading lady breaks up (at least, temporarily) with high-drama gowns and opts for a simple tan midi with a structural neckline that shows off her décolletage (worn with Casadei pumps) at Clinique's Dramatically Different Party in N.Y.C.

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Last Night's Look: Love It or Leave It?

RITA ORA

There's only one way to describe the sheer panels on this Natalia Kaut dress, and that's: strategically placed. The singer somehow manages to avoid a wardrobe malfunction in the sexy little bustier number (worn with Jennifer Fisher necklaces) while at a Sony Xperia Access event in London.

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Last Night's Look: Love It or Leave It?

BEYONCÉ

Queen Bey gives a nod to her Destiny's Child days in this plunging white Roberto Cavalli gown with a sexy midriff cutout, which she accessorizes with a gold clutch and sleek strands at the 40/40 Club's 10 Year Anniversary Party in N.Y.C.

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Last Night's Look: Love It or Leave It?

SANDRA BULLOCK

Another head-to-toe black ensemble for Sandra. The actress selects a leather ASOS pencil skirt, matching button-down Michael Kors blouse, Pomellato 67 bracelets and Tabitha Simmons sandals to complete her monochromatic look while promoting The Heat in Berlin.

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Last Night's Look: Love It or Leave It?

GWEN STEFANI

Who else can rock a black silk jumpsuit, baby blue platform sandals and aqua Quay Eyeware sunnies so effortlessly? Gwen tops the striking look with her signature red pout at the premiere of Monsters University in Hollywood, Calif.

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Last Night's Look: Love It or Leave It?

EVA LONGORIA

Don't let this outfit fool you – Eva's actually wearing an ivory Pamella Roland jumpsuit (not separates) complete with a peplum, front zipper and sheer back paneling at the premiere of Devious Maids in Pacific Palisades, Calif.

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Last Night's Look: Love It or Leave It?

ALESSANDRA AMBRÓSIO

After you vote on the supermodel's latest look – a breezy white Robert Rodriguez dress, Jennifer Meyer jewels and bright yellow Coach clutch at the Monsters University premiere in Hollywood, Calif. – get the inside scoop on her sexy red carpet style.

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Last Night's Look: Love It or Leave It?

ROSIE HUNTINGTON-WHITELEY

Talk about gym inspiration. The model puts her mile-long legs front and center in this printed Emilio Pucci mini and satin Casadei pumps, which she pairs with a blue clutch at the premiere of Hummingbird in London.

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Last Night's Look: Love It or Leave It?

OCTAVIA SPENCER

The actress shows loyalty to her favorite designer in a cobalt blue lace Tadashi Shoji dress with a ribbon belt and metallic Jimmy Choo sandals at the Fruitvale Station premiere in L.A.

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Last Night's Look: Love It or Leave It?

TAYLOR SWIFT

Think Taylor will win Best Dressed for the second week in a row with this outfit? She flaunts her figure in a black-and-white Herve Leger by Max Azria bandage dress, adding Christian Louboutin peep-toes, an Orifa bracelet and a bold red lip at the MuchMusic Video Awards in Toronto.

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Last Night's Look: Love It or Leave It?

GWYNETH PALTROW

Easy-to-predict signature center-parted hairstyle, very unexpected ivory Alexander McQueen dress. The actress pairs the attention-grabbing turtleneck mini with gold peep-toe pumps and major Pomellato bracelets for the Gene Siskel Film Center Gala in Chicago.

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Last Night's Look: Love It or Leave It?

KERRY WASHINGTON

While we investigate Kerry's shorter do (it appears to be pinned under), you vote on the Scandal star's two-toned dress with studded detailing on the straps and hemline, which she accessorizes with a metallic envelope clutch and cap-toe pumps (both Jimmy Choo) at the line's bash with Esquire in London.

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Last Night's Look: Love It or Leave It?

DEMI LOVATO

The singer's St. Laurent LBD gets a hit of edge thanks to the crazy-high hemline, chain detailing along the neckline and structured shoulders, which help her steal the spotlight at the MuchMusic Awards in Toronto.

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Last Night's Look: Love It or Leave It?

AMY ADAMS

Lois Lane goes laid-back! Amy chooses a feminine white Dolce & Gabbana dress with floral detailing on the skirt, plus Rupert Sanderson peach pumps and turquoise jewelry, for the Man of Steel premiere during the Taormina Film Fest in Taormina, Italy.

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Last Night's Look: Love It or Leave It?

EVA LONGORIA

Who needs a basic black mini when you have a navy romper like Eva's? The actress puts her pins on display in a chic onesie and her favorite Brian Atwood sandals at the In a World premiere in L.A.

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Last Night's Look: Love It or Leave It?

LUCY HALE

The new beauty ambassador for mark Cosmetics hits her mark in a white Amen dress with floral embellishments at the neckline. She adds a pop of color with berry-hued Casadei pumps and a bright lip at the MuchMusic Video Awards in Toronto.

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Last Night's Look: Love It or Leave It?

ROONEY MARA

Yes, she's wearing all-black, but there's nothing boring about Rooney's J.W. Anderson separates (which show off her toned abs) and black Jimmy Choo ankle-strap sandals, worn to the premiere of Ain't Them Bodies Saints in L.A.

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Last Night's Look: Love It or Leave It?

SHAY MITCHELL

Another star who shows off her midriff, the Pretty Little Liars actress oozes sex appeal in a printed crop top and matching mini (both Clover Canyon). She takes her head-turning look to the next level with a Jimmy Choo clutch and pumps, an Effy ring and big hair at the MuchMusic Video Awards in Toronto.

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Last Night's Look: Love It or Leave It?

BRITTANY SNOW

Giving us even more proof that spots are having a major moment in Hollywood, Brittany steps out in a black Alice by Temperley dress with a sheer dotted overlay, which she sports with a fuchsia clutch, Graziela rings and coordinating lip at the MuchMusic Video Awards in Toronto.

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