Halloween is the one day of the year when gorgeous women needn’t feel any shame about showing off what their momma (and plastic surgeons) gave them. Celebs hosted costume parties nationwide over the weekend, producing no small amount of eye candy. Twilight star Ashley Greene looked pretty as a peacock as she arrived at Tao nightclub in Vegas. Victoria’s Secret model Selita Ebanks showed off her curves in a sinfully sexy devil get-up at fellow Angel Heidi Klum’s annual soiree. Hills star Audrina Patridge dressed appropriately as she hosted an “I Dream of Audrina” party in Atlantic City. Always-outrageous Coco went for an S&M look at Mariah Carey’s party in NYC. Which scantily-clad star looked the hottest?

Check out the sexiest, wackiest, and most creative celebrity costumes below:

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Mariah Carey and hubby Nick Cannon showed up to her Halloween party in NYC looking heavenly and happy in all white. On the opposite coast, Paris Hilton and boyfriend Doug Reinhardt partied at Heidi Klum’s annual fete in less recognizable white ensembles. It appears that Doug set aside his dignity to don a tutu as the Tooth Fairy, while Paris is maybe an angelic cha-cha dancer? We’re not sure. Which kooky couple looked better?

Mel B stepped out of her London hotel for a Vitamin Water event in a slinky white dress, Christian Louboutin heels, and a blonde ‘do. Think she’ll have more fun? Or should she ditch the wig? [Photo: Splash News Online]

Horrific fashion was abound at Spike TV’s Scream Awards over the weekend, and two traditionally tantalizing ladies let us down. Jessica Alba looked sad in a conservative metallic number while Megan Fox’s attempt at retro in red came off frumpy and forgettable. Both their ensembles and facial expressions were less than enthused, but who looked more miserable?

Other fashion disasters included Eliza Dushku’s unflattering sequined frock, Christina Ricci’s boring black satin tunic, and Jaime King’s ill-fitting patchwork dress with wacky hair. Johnny Depp made a rare appearance at the Scream Awards in his usual “eccentric” garb. See pics below. [Photos: Getty Images]

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Ever-the-trendsetters Rihanna and Lindsay Lohan have hopped the pond for Paris Fashion Week and have since been spotted looking trés chic while shopping and hitting up the most fabulous shows. While both honored the menswear trend with black blazers, each added their own trendy twist. RiRi continued her edgy streak by pairing the shoulder-padded jacket with a black bra, lace, and shiny parachute pants. LiLo wore a loose-fitting floral blouse with black tights and grungy metal-adorned boots. Who looked prettier in Paris? [Photos: Getty Images, Splash News Online]

“We’ll be going inside Paris Fashion Week, reporting from the City of Lights from September 30^th to October 8th. Get all the glam details on celebrity, fashion, runway shows, and parties here and follow the action on Twitter at LibbyTheFabLife!“

This may come as no surprise, but supermodel and Project Runway host Heidi Klum defied all logic last night at the Emmys by looking as hot as ever while in her final trimester. In an interview with Ryan Seacrest, Klum stated she believes that the bigger you get, the tighter you should go. Well, her theory certainly worked for her, as her black gown hugged her with-child curves.

Reality star Kourtney Kardashian went for a more typical maternity gown, but looked beautiful nonetheless as she glowed in navy blue. Which knocked-up celeb looked more glamorous? [Photos: Getty Images]

While Gossip Girl may not be Emmy-worthy, its stars showed up looking as glamorous as any nominee. Though Blake Lively’s braid could’ve looked more polished, her body looked bangin’ in a clingy bright red Versace. Leighton Meester looked as classy as her GG character in an all-white draped dress with dramatic makeup. The co-stars have totally different senses of style… which one looked more ravishing on the red carpet? [Photos: Getty Images]

It’s TV personality against TV personality, Kathie vs. Kathy. Both Kathie Lee Gifford and Kathy Griffin attended our Divas show and were visions in white. We’re actually impressed on a regular basis with how well-styled Kathy Griffin has become and we think this look is great on her. Kathie Lee looks about par for the course - dressing for the occasion in a getup our mom would like. Both are missing their best accessories, though: Kathie Lee needs more Hoda and Kathy needs assistants Tom and Tiffany to round things out. [Photos: Getty Images]

Not all of our Style Wars are so easy to put together, but in the case of Shakira and Pink’s red carpet outfits at the 2009 MTV VMA’s, it was pretty cut and dry. The two singers showed up to the awards - OMG - wearing the exact same dress. They accessorized themselves differently, but we’re thinking that right now, there are two stylists being reamed out for not checking around to see what everyone was wearing. So whose look kicked more black-sequined butt, Pink’s cool, spiky-haired high heeled vibe, or Shakira’s Pretty Woman-esque go-go boots and clutch?

Sex and the City 2 has been filming for no more than a day and the glamorous outfits already abound, excluding Sarah Jessica Parker’s 80s-inspired disaster. SJP was seen yesterday bounding down the sidewalks of Manhattan in gold sparkly Louboutins and donning a chic wrap dress. Later that day, she strutted in a vibrant purple number accessorized with an oversized pink purse. While we’re worried about the plot lines of this seemingly unnecessary sequel, there will no doubt be plenty of fashionable eye candy. Which first day outfit looked more fabulous? [Photos: Splash News Online and Getty Images]