Always one of the biggest bashes of the Halloween holiday, Heidi Klum played host to her annual party at Lavo in New York City on Sunday night (October 31). The “Project Runway” beauty turned up in her towering iron-clad superhero ensemble while joined by her miniature silver-suited hubby Seal

Taking the stage overseas as she gears up for the November 16th release of her new album, Rihanna was the special guest performer on “The X-Factor” on Sunday (October 31). The Barbadian beauty dazzled as she belted out her new single “Only Girl [In the World]” before being spotted hitting the Fountain Studios exits bundled up in a warm fur coat. From there, Rihanna headed off for an evening on the town, as she dined at Nozomi restaurant before making her way to a nearby nightclub to cap off the Halloween holiday.

Taking the stage overseas as she gears up for the November 16th release of her new album, Rihanna was the special guest performer on “The X-Factor” on Sunday (October 31).

Making the most of a rare day free from work duties, Christina Hendricks stepped out for a Halloween lunch with her parents in Los Angeles, CA on Sunday (October 31). The “Mad Men” actress and her folks opted for a little Mexican cuisine at Paco’s restaurant, with Christina’s dad getting into the holiday spirit with some wild shades and a bright purple hat. Clearly appreciative of her parent’s undying support over the years, Miss Hendricks recently spoke with Britain’s Grazia magazine about how her mother has taught her to embrace her curves

Making the most of a rare day free from work duties, Christina Hendricks stepped out for a Halloween lunch with her parents in Los Angeles, CA on Sunday (October 31). The “Mad Men” actress and her folks opted for a little Mexican cuisine at Paco’s restaurant, with Christina’s dad getting into the holiday spirit with some wild shades and a bright purple hat. Clearly appreciative of her parent’s undying support over the years, Miss Hendricks recently spoke with Britain’s Grazia magazine about how her mother has taught her to embrace her curves.

Certainly an occasion in which she’ll never forget, Kourtney Kardashian took her adorable son Mason out for his very first Halloween trick-or-treating expedition. Dressed as a pirate, the E! reality cutie toted her frog-suit sporting 10-month-old in her arms as they roamed the streets of New York City in search of candy handouts on Sunday evening (October 31). Aside from doting on her little prince, Miss Kardashian took to Twitter today to encourage all those dressing as her babydaddy Scott Disick for Halloween to send in their pictures

Getting everything situated for the night’s Halloween party plans, Kim Kardashian met up with her stylist to decide which costume to wear on Sunday (October 31). Looking fabulous in each and every option, the “Keeping Up with the Kardashians” darling swapped in and out of the various ensembles including a feline suit, Little Red Riding Hood outfit, Queen of Hearts costume and sexy pirate garb. Unable to make up her mind, Miss Kardashian took to her Twitter page to ask for help in deciding after narrowing down the field

Drawing an end to a busy holiday weekend, Justin Bieber tended to work duties as he held a book signing at Barnes and Noble in Los Angeles, CA on Sunday (October 31). Looking studly in an all-black ensemble complete with black-rimmed spectacles, the “Baby” hitmaker posed for pictures before sitting down to sign copies of his just-released book, Justin Bieber: First Step 2 Forever: My Story. Tweeting about the day’s doings, Justin wrote to his millions of followers: “so far Halloween SUNDAY FUNDAY has been epic

Making for a moment they’ll cherish forever, Bethenny Frankel and husband Jason Hoppy took baby Bryn out for her first Halloween on Sunday (October 31). The family dressed up as Panda Bears and went trick or treating for a few blocks, with the former “Real Housewives” star even matching the family pooch in full costume. Tweeting about the occasion, Miss Frankel wrote, “Ok it took a village but me,jason,dabooboo&bryn r in costume&en route to trick or treat!keep an eye out for the skinnygirl car!” Obviously having her hands full now that she’s married with child, Bethenny later added, “Omg halloween was simple when single.I quickly turned into a hooker panda,pants falling,head covering eyes,baby crying,cookie mauling etc.”

Taking the stage for a Halloween-themed gig, Ke$ha offered up an energetic performance at the Grave Digger’s Ball in Charlotte, North Carolina on Saturday night (October 30). Hosted by Kiss 95.1, the “TiK ToK” singer churned out the hits for the packed audience while swapping in and out of an array of spectacular costumes. The Charlotte show comes as Ke$ha is readying for the November 22 release of a brand new EP titled “Cannibal”.