This week’s best-dressed celebs include Selena Gomez, Britney Spears, and Eva Longoria. — By Matt Whitfield, Yahoo! Staff

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On Saturday, former Disney Channel darling Selena Gomez showed off her fit physique and tanned gams in a midriff-baring ensemble while promoting her new fragrance in NYC. Justin Bieber’s better half perfectly paired her under-the-sea-inspired Versace bustier and high-waisted shorts with a Vanessa Bruno blazer and nude Giuseppe Zanotti pumps. What do you make of the 19-year-old’s look? Is it fun and flirty or a bit too revealing?

Also looking lovely in white was Britney Spears, who arrived at the Sprint Center for the first day of “X Factor” auditions in Kansas City, Missouri, in this feminine Azzedine Alaia frock and gray Miu Miu platform peep-toes. Has Brit gotten her groove back, or is it still too soon to tell?

Sporting what may be our favorite look this week was “Desperate Housewives” alumna Eva Longoria, who turned heads at the 52nd Monte Carlo TV Festival in this sea foam green Versus stunner, which featured a tri-color graphic and black zipper detailing. The pint-sized beauty topped things off with a pumped-up ponytail, diamond earrings, and $700 Brian Atwood pumps.

Jamie-Lynn Sigler was all smiles as she arrived at this year’s Chrysalis Butterfly Ball in Brentwood, California. Best known for playing Meadow Soprano, the small screen actress decided to don a sweet Nicole Miller maxi dress and cobalt blue nail polish to the star-studded soiree.

Following in Sigler’s footsteps was Lea Michele, who took a major fashion risk by opting to wear this long-sleeved, pastel Emilio Pucci gown. Some of you may find the “Glee” cutie’s dress a tad curtain-esque, but we happen to love the watercolor print and geometric patterning, not to mention Ms. Michele’s Pomellato cocktail ring.

You can never go wrong with a Max Mara LBD, and “Help” star Viola Davis certainly didn’t when she rocked this strapless satin dress — and strappy Jimmy Choo sandals — at the 2012 Crystal & Lucy Awards in Beverly Hills. Va-va-voom!

“Vampire Diaries” hottie Nina Dobrev also loves Max Mara and wore this adorable MM getup to a recent Women in Film event in West Hollywood. In addition to her sleeveless top and embroidered skirt, she hit the pavement in sparkling silver peep-toes.

Kelly Rowland is currently gracing the cover of VEGAS Magazine, and to celebrate the reveal, the former Destiny’s Child member partied the night away at Sin City’s Cosmopolitan Resort & Casino in this technicolor Roberto Cavalli dress and $1,500 metallic Charlotte Olympia pumps. Now that’s what we call 2 Hot 2 Handle!

Even if you happen to be Team Jolie (like myself), there’s no denying that Jennifer Aniston was a vision in white at the 40th AFI Lifetime Achievement Awards, which honored Shirley MacLaine late last week. Her Burberry dress was quite basic, but the 43-year-old looked alluring in the simple-yet-chic item … and her snakeskin Tabitha Simmons heels.

Aniston’s pal Sheryl Crow made her first red carpet appearance since announcing that she has a benign brain tumor at the 66th Annual Tony Awards on Sunday evening. Sporting an embroidered, navy Marchesa masterpiece, the singer/songwriter — who’s already beaten breast cancer — wasn’t going to let the news of her latest medical scare keep her from.

And last but not least we have Freida Pinto, who oozed elegance in Salvatore Ferragamo as she entered the fashion house’s “Cruise Collection” show at Galerie Denon in Paris. A sophisticated bun, silver earrings, and black heels completed the “Slumdog Millionaire” star’s ensemble.

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