Fab or flop: Paris Hilton's sheer dress, Kristen Stewart's sneakers and more

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Fab or flop: Week of May 8
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Fab or flop: Paris Hilton's sheer dress, Kristen Stewart's sneakers and more

Flop: Paris Hilton

Sure, the heiress isn't exactly known for her understated demeanor, but her white embroidered sheer illusion dress paired with gaudy white accessories added up to a completely dizzying ensemble that lacked polish.

(Photo by SMXRF/Star Max/GC Images)

Fab: Kristen Stewart

The actress, 26, flaunted some serious style in a fun striped minidress, white crop top, leather jacket and classic checkerboard sneakers. Her bleach blonde hair and a swipe of red lipstick added a touch of glam to the casual look. 

(Photo by George Pimentel/WireImage)

Flop: Susan Sarandon  

The actress, 69, looked totally outrageous in a captain-inspired gown with a low-cut neckline and dangerously high slit. Not only was the dress gaudy, but the push-up bra was definitely a bit over-the-top.

(Photo by Neil Mockford/Alex Huckle/GC Images)

Fab: Eva Longoria

Longoria stunned in a simple white midi dress with a contrasting belt. Nude accessories completed her look without being too matchy-matchy. 

(Photo by Marc Piasecki/GC Images)

Flop: Kris Jenner

We usually love matching sets, but Jenner totally put the "mom" in momager when she rocked this frumpy, striped set complete with bermuda shorts.

(Photo by Neil Mockford/Alex Huckle/GC Images)

Fab: Kate Hudson

The actress, 37, looked totally put-together in navy flared pants, a blazer-inspired cape and platform heels. A fresh blowou,t, simple sunnies and a box clutch completed her fabulous look.

 (Photo by Alo Ceballos/GC Images)

Flop: Kate Beckinsale

The cold-shoulder neckline, sheer panels and feathered mermaid skirt all added up to one big hot mess.

(Photo Credit: Rainmaker Photo/MediaPunch/IPX)

Fab: Sara Foster

"90210" actress and stepsister of the Gigi and Bella Hadid stunned in a gorgeous emerald sweater and matching pleated skirt. Statement earrings and sandals completed her ensemble.

(Photo by Vincent Sandoval/FilmMagic)

Flop: Jada Pinkett Smith

The actress looked tacky in a feathered miniskirt and cheesy top that looked like it came from the early 2000s.

(Photo by Robert Kamau/GC Images)

Fab: Julianne Hough

The dancer looked absolutely adorable in a flouncy gray strapless minidress that drew attention to her toned arms and collarbones.

(Photo by Vincent Sandoval/FilmMagic)

Flop: Camilla Belle

The actress' outfit was totally confused with a sheer black top with yellow details, a chainmail-esque cardigan and satin bow-adorned slacks.  

(Photo by Paul Redmond/WireImage)

Fab: Victoria Beckham

Posh Spice stunned in a sleek pair of black wide-legged pants featuring sporty white stripes down the sides. A crisp white buttondown and gorgeous black satchel completed her fabulous ensemble.

(Photo by Neil Mockford/Alex Huckle/GC Images)

Flop: Leona Lewis

We love the cold shoulder neckline on Lewis, but the bell sleeves added the illusion of bulk around her hips -- and we're not too keen on the styling, either.

 (Photo by JB Lacroix/WireImage)

Fab: Olivia Munn

Munn channeled her inner mermaid -- and totally pulled it off -- in this stunning scale-like metallic midi skirt and halter crop top. 

(Photo by Fred Duval/FilmMagic)

Flop: Kate Beckinsale

The layered bottom of Beckinsale's look was just frumpy and confused.

(Photo by Michael Stewart/WireImage)

Fab: Riley Keough

The actress stunned in a very '70s-inspired houndstooth skirt and floral top in a matching palette. A wild 'do and shoulder bag completed her effortlessly stylish look.

(Photo by RB/Bauer-Griffin/GC Images)

Flop: Julia Roberts

Roberts' jumpsuit had the potential to be very chic, but the pinstripes made it veer into waitstaff territory.

(Photo by Tony Barson/FilmMagic)

Fab: Kendall Jenner

The model totally stunned in a gorgeous white jumpsuit with a slim, cropped leg and sexy halter-esque neckline. Retro-looking black and white sunnies completed her flawless look.

 (Photo by Pierre Suu/GC Images)

Flop: Blac Chyna

Black Chyna's silver sequin-dotted black Grecian dress didn't do her any favors.

(Photo by JB Lacroix/WireImage)

Fab: Ashley Graham

The model stunned in a flirty knit knee-length dress with chic silver stripes.

(Photo by Slaven Vlasic/Getty Images)

Flop: Chloe Grace Moretz

Moretz is absolutely adorable, but her themed look was a bit too costume-y. We love each item individually, but nor all together.

(Photo by Demis Maryannakis/Star Max/GC Images)

Fab: Vanessa Hudgens

The talented actress wowed in a fun, boho off-the-shoulder floral midi dress with blouson sleeves.

 (Photo by Donato Sardella/Getty Images for HL Group)

Flop: Taylor Swift

Swift usually nails it on the red carpet, but she has yet to figure out how her new, grungy style translates into formalwear. This acidic-looking velvet gown was a lackluster first attempt. 

(Photo by Mark Davis/Getty Images)

Fab: Naomi Watts

Watts looked perfectly pretty in a gorgeous lilac gown with fun, sparkly embellishments. A matching statement necklace completed her stunning look.

 (Photo by Venturelli/WireImage)

Flop: John C. Reilly

The funny man looked outdated in a gray suit, silly hat and mismatched pink accents.

(Photo by Araya Diaz/WireImage)

Fab: Colin Farrell

Farrell looked modern and chic in skinny black pants, a simple gray crewneck sweater and black blazer.

(Photo by Araya Diaz/WireImage)

Flop: Anna Kendrick

Kendrick's bright blue lace midi dress was a little matronly for the 30-year-old starlet.

(Photo by Neil P. Mockford/GC Images)

Fab: Kristen Stewart

We can't get enough of Stewart in this totally chic yet totally her look! The actress wowed in a sophisticated white pencil skirt paired with a casual cropped T-shirt. Dainty chains and sleek pumps completed her edgy look.

(Photo by Danny Martindale/GC Images)

Flop: Pixie Lott

The British singer looked outrageous in head-to-toe lemon print, down to her bag and shoes.

 (Photo by Marc Piasecki/GC Images)

Fab: Kate Hudson

The gorgeous actress wowed in a simple printed maxi dress, leather bag and suede booties. 

(Photo by Marc Piasecki/GC Images)

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Between Cannes, premieres and everything in between, there was no shortage of stunning celebrity styles this week. But while some stars like Kristen Stewart hit high note after high note, others like Paris Hilton totally flopped.

Sure, the heiress isn't exactly known for her understated demeanor, but a white embroidered sheer illusion dress she rocked to airport -- paired with gaudy white accessories -- added up to a completely dizzying ensemble that lacked polish.

SEE ALSO: Sexy Stars: Kate Moss, Gigi Hadid stun in hot styles

Stewart, on the other hand, flaunted some serious style in a fun striped minidress, white crop top, leather jacket and classic checkerboard sneakers. Her bleached blonde hair and a swipe of red lipstick added a touch of glam to the casual look.

The actress wowed again at Cannes in a sophisticated white pencil skirt paired with a casual cropped T-shirt. Dainty chains and sleek pumps completed her edgy, totally her ensemble.

See these looks and more hits and misses in the slideshow above.

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2016 Cannes Film Festival's Top Fashion!

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