Celebrity Star-Studded: The Best Parties This Week By Jonathan Borge Jonathan Borge Instagram Twitter Jonathan Borge is a writer and editor living in New York City. His writing has appeared in Glamour, Refinery29, Forbes, and PAPER, among other publications. Plus, he's held staff positions at Marie Claire, InStyle, and OprahDaily.com. Currently, he's the Senior Entertainment Editor at Bustle Digital Group's Elite Daily, where he oversees digital covers, features and profiles, freelance essays, and strategy for the site's TV/Movies and Celebrity and Music sub-verticals.He primarily writes about pop culture and style, and has a passion for telling LGBTQ+ and Latinx stories. When he's not working, he's likely waiting for Lady Gaga to announce her next tour. InStyle's editorial guidelines Updated on October 27, 2017 @ 01:00PM Pin Share Tweet Email Photo: Stefanie Keenan/Getty Images What makes one truly unforgettable party? Is it good drinks? One stellar DJ? Plenty of red carpet fashion moments? To us, it's all about the guest list, which is why the InStyle Awards 2017 proved to be the hottest celebration of the week. On Monday evening, we gathered fashion's best to honor each of their accomplishments. Elle Fanning, Brie Larson, Zendaya, and more stars came together at L.A.'s Getty Center—also where Selena Gomez and Demi Lovato shared one epic camera-ready reunion. It was one spectacular evening, and if you haven't had enough, relive it all right here. Later in the week, Bella Hadid and Lily Aldridge dressed to the nines for Bulgari's celebration of its New York City Fifth Avenue flagship. Isn't it always a party when Bella's there? When it comes to Hollywood BFFs, some of our favorites are Eva Longoria and Victoria Beckham. The dynamic duo joined forces to celebrate go-to hairstylist Ken Paves and his new salon. Victoria's husband David popped in for a visit, and the married couple posed for one epic photo. VIDEO: InStyle Awards: What's Your Favorite Boob Trend of the Year? Karl Lagerfeld was also the guest of honor at several Manhattan events this week, drawing everyone from Lily-Rose Depp to Mariah Carey and Naomi Campbell. It doesn't get any more fabulous than that. Scroll down to see the best parties of the week. 01 of 18 Demi Lovato and Selena Gomez Kevin Tachman at the InStyle Awards 2017. 02 of 18 Valentino Creative Director Pierpaolo Piccioli and InStyle Editor-in-Chief Laura Brown Courtesy Owen Kolasinski/BFA.com at a dinner in celebration of Pierpaolo Piccioli, InStyle Awards 2017 Designer of the Year honoree. 03 of 18 Kate Hudson Courtesy Owen Kolasinski/BFA.com at a dinner in celebration of Pierpaolo Piccioli, InStyle Awards 2017 Designer of the Year honoree. 04 of 18 Bella Hadid James Devaney/Getty at a cocktail party celebrating Bulgari's Fifth Avenue flagship store. 05 of 18 Lily Aldridge Astrid Stawiarz/Getty Images at a cocktail party celebrating Bulgari's Fifth Avenue flagship store. 06 of 18 Priyanka Chopra, Karlie Kloss, Fergie, and Kate Hudson Courtesy Bumble at a party celebrating Bumble Bizz. 07 of 18 David and Victoria Beckham Frazer Harrison/Getty Images at the grand opening of the new Ken Paves Salon. 08 of 18 Eva Longoria, Ken Paves, and Victoria Beckham Frazer Harrison/Getty Images at the grand opening of the new Ken Paves Salon. 09 of 18 Chelsea Leyland and Harley Viera-Newton Courtesy Valentino at a party celebrating VLTN's pop-ups. 10 of 18 Julianne Moore Dimitrios Kambouris/Getty Images at a dinner in celebration of John Hardy. 11 of 18 Lily-Rose Depp and Karl Lagerfeld Gonzalo Marroquin/Getty Images at the 2017 WWD Honors celebration. 12 of 18 Hari Nef Jamie McCarthy/Getty Images at the 2017 WWD Honors celebration. 13 of 18 Anna Ewers Kevin Mazur/Getty at the 2017 WWD Honors celebration. 14 of 18 Joan Smalls, Gigi and Bella Hadid, and Kris Jenner Kevin Mazur/Getty Images at a dinner in celebration of Karl Lagerfeld. 15 of 18 Mariah Carey and Naomi Campbell Kevin Mazur/Getty Images at a dinner in celebration of Karl Lagerfeld. 16 of 18 Jordyn Woods Sean Zanni/Getty Images at a party celebrating 40 years of American Eagle at the new N.Y.C. AE Studio. 17 of 18 Billie Lourd Sean Zanni/Getty Images at a party celebrating 40 years of American Eagle at the new N.Y.C. AE Studio. 18 of 18 Joy Mangano and Iman Monica Schipper/Getty Images at a party celebrating Mangano's new book, Inventing Joy.