[ChatMasti] Top Actress Dress-Up

Top Actress Dress-Up

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?

Across the Atlantic -- at the Cannes Film Festival premiere of "Mud" -- Matthew McConaughey's fiancee, Camila Alves, dropped jaws in this Marchesa masterpiece. A wavy 'do and diamond accents gave the Brazilian beauty an extra ounce of va-va-voom.

Earlier that day, Stewart's on-screen nemesis, Charlize Theron (aka The Evil Queen), looked stunning in an all-black getup as she headed to a taping of "Today" at Rockefeller Center. While we like her sophisticated Lanvin sheath, we love her sexy Christian Louboutin ankle boots, which retail for a whopping $1,300! 

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.

photographed in the South of France was "Desperate Housewives" alumna Eva Longoria, who wore this slinky Reem Acra dress to the annual Global Gift Gala. Diamond studs and a smile made for the perfect accessories.

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.

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

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. 

"American Idol's" latest installment came to a conclusion just last week, but that doesn't mean J.Lo is ready to step out of the spotlight. Over the weekend, she made a special appearance in Sin City to celebrate the launch of her new single, "Goin' In." For the occasion, the diva extraordinaire donned a Zuhair Murad mini dress, which featured long sleeves and gold-sequined leaves, along with sparkly Louboutin heels.

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.

Following in Lea's footsteps was former Destiny's Child member, Kelly Rowland, who looked better than ever at the star-studded soiree in a Maria Grachvogel halterneck gown, which featured a lengthy train and an equally dramatic pattern on the back.

Kristen Stewart rocked an equestrian-like look upon arriving at a "Snow White and the Huntsman" industry screening in L.A. on Tuesday night. The 22-year-old actress -- who was outfitted by designer Stella McCartney -- paired a high-collar blouse with a black blazer and matching mini skirt. A loose updo, smokey eye makeup, and two-tone platform pumps completed her youthful yet chic ensemble.

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.

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.

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.

"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. 

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? 

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 attending the show. Good for her! 

Vanessa Hudgens looked incredibly mature as she made her way down the arrivals line in an Alberta Ferretti frock at a recent charity event in Monaco. Can the former "High School Musical" hottie keep it up, or will she land in our What Were They Thinking?! gallery in the coming weeks? Discuss!