By Amy Lee
2:46 PM PDT, October 31, 2018
Whether they're rocking red carpets or strutting their stylish stuff on the streets, we can't get enough of these stars' fashion statements. Click through the gallery to see the best looks this month.
Keira Knightley
The Colette star was beautiful in a light blue Givenchy pleated dress at the Harper's Bazaar Women of the Year Awards in London.
Emma Roberts
The actress attended the Los Angeles premiere of In a Relationship in a Markarian velvet bow dress.
Lily-Rose Depp
The model and actress rocked a beige crop top and skirt by Chanel for the brand's cruise 2018/19 replica show in Bangkok, Thailand.
Nicole Kidman
The A-list actress glistened at the Los Angeles premiere of Boy Erased in a sequined purple dress by Markus Lupfer.
Emily Blunt and John Krasinski
The British beauty was a stunner in an embellished Dolce & Gabbana dress with her husband at the 21st SCAD Savannah Film Festival in Savannah, Georgia.
Rooney Mara
The actress looked edgy in a white dress and leather harness by Hiraeth at the Animal Equality Inspiring Global Action Gala in Beverly Hills.
Priyanka Chopra
The engaged actress attended her bridal shower at the Blue Box Cafe in New York City, stunning in a white feathered strapless Marchesa dress, Christian Louboutin shoes and Tiffany & Co. jewelry.
Sandra Bullock
The Ocean's 8 actress looked so chic in a blush pink pantsuit with a matching red blouse and heels in New York City.
Meghan Markle
The Duchess of Sussex wowed in a tulle gown with lasercut seagulls by Oscar de la Renta at the Australian Geographic Society Awards in Sydney.
Gigi Hadid
The supermodel stunned in a white Ralph Lauren suit and gold metallic pumps on her way to The Tonight Show Starring Jimmy Fallon in New York City.
Tracee Ellis Ross
The Black-ish actress attended the 2018 InStyle Awards in a dramatic Giambattista Valli Haute Couture floral printed dress.
Rosie Huntington-Whiteley
The model dazzled in a fringe ensemble by Givenchy at the 2018 InStyle Awards.
Lily Collins
The actress was bold in green via a cut-out dress and jacket from Givenchy at the 2018 InStyle Awards.
Emma Stone
The Oscar winner arrived at the London premier of The Favourite in a custom silver Louis Vuitton gown and jewelry.
Katie Holmes
The actress glammed up in a feathered pantsuit by Prada for the American Ballet Theatre 2018 Fall Gala in New York City.
Naomi Watts
The Aussie blonde rocked an ornate mini by Michael Kors Collection at the 12th Annual Golden Heart Awards in New York City.
Priyanka Chopra
The Quantico actress was a beauty in a chambray button-down dress from Michael Kors Collection at the 12th Annual Golden Heart Awards in New York City.
Rosie Huntington-Whiteley
The model was a knockout in a lavender long-sleeve dress by Ellery in Universal City.
Katie Holmes
The brunette was sleek and chic in a cream-colored jacket, black skinny jeans and pumps with a Chanel bag in New York City.
Dakota Johnson
The Suspiria star sparkled in a sequin, silver strapless gown by Gucci at the film's London premiere.
Thandie Newton
The Westworld actress was chic in a black-and-white polka-dot halter cutout gown from Carolina Herrera at Variety's Power of Women.
Laura Harrier
The BlacKkKlansman actress was elegant in a navy blue dress by The Row at the 16th Annual Hammer Museum Gala.
Beyonce
The superstar took everybody's breath away in a feathered Ralph & Russo gown as she performed at the City of Hope Spirit of Life Gala.
Cara Delevingne
The model broke tradition like a true fashion girl in an Emporio Armani tux at Princess Eugenie's wedding.
Keira Knightley
The actress attended the London premiere of Colette in an embellished Chanel gown.
Kate Middleton
The Duchess of Cambridge wowed in a plaid belted off-shoulder dress by Erdem at the opening of the Victoria & Albert Museum's Photography Centre in London.
Priyanka Chopra
The Quantico actress was breathtaking in a silver sequined Giorgio Armani slip dress and Tiffany & Co. jewelry at the brand's Blue Book Collection celebration event.
Kim Kardashian West
The social media star was sexy in a white cutout Rick Owens dress and Tiffany & Co. jewelry at the brand's Blue Book Collection celebration event in New York City.
Rachel Brosnahan
The Emmy winner brightened the room in a canary yellow gown from Carolina Herrera and Tiffany & Co. jewelry at the brand's Blue Book Collection celebration event in New York City.
Alison Brie
The GLOW actress looked gorgeous in a Brock Collection bustier floral peplum dress, Christian Louboutin shoes and jewelry by EF Collection and Beladora at PORTER's Incredible Women Gala.
Tiffany Haddish
The comedian donned a unique metallic pantsuit and gold pumps at PORTER's Incredible Women Gala.
Tracee Ellis Ross
The Black-ish actress hosted the 2018 AMAs in a frothy cream Off-White tulle dress. See the rest of her jaw-dropping outfits from the show here.
Cardi B
The rapper stole the show in a corseted floral gown and matching headdress by Dolce & Gabbana at the 2018 AMAs.
Taylor Swift
The pop star shined in a silver mirrored mini dress and thigh-high boots by Balmain at the 2018 AMAs.
Rami Malek
The Bohemian Rhapsody star rocked a Givenchy ensemble of gingham jacket, white button-down, black trousers and patent leather shoes at the 2018 AMAs.
Shawn Mendes
The handsome crooner sported a Saint Laurent suit and printed silk shirt at the 2018 AMAs.
Timothee Chalamet
The Beautiful Boy actor attended the film's Los Angeles premiere in a slick red suit by Louis Vuitton.
Kiernan Shipka
The Chilling Adventures of Sabrina star attended the Sitges Film Festival in Spain, wearing a Rosie Assoulin top and tiered skirt.
Kendall Jenner
The supermodel was gorgeous in a Philosophy di Lorenzo Serafini corset mini dress and white shoes at the Veuve Clicquot Polo Classic in Los Angeles.
Michelle Williams
The Venom actress wowed in a custom embroidered Louis Vuitton gown at the film's Los Angeles premiere.
Jenny Slate
The actress looked sleek in an Altuzarra dress and a slick, side-parted bob at the Venom Los Angeles premiere.
Zoe Kravitz
The actress attended dad Lenny Kravitz's "Assemblage" exhibition in New York City, wearing a yellow Oscar de la Renta bustier top, maxi skirt and matching Edie Parker bag.
Alexa Chung
The British It girl arrived at Stella McCartney's spring/summer 2019 show in Paris sporting a pink lace maxi and sneakers.
Rooney Mara
The Oscar-nominated actress stunned in a bedazzled, structured jumpsuit at the Givenchy spring/summer 2019 show during Paris Fashion Week.