Celebrity Gigi Hadid Is Ready for Kendall Jenner's 21st Birthday "Weekend" 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 November 2, 2016 @ 12:15PM Pin Share Tweet Email Photo: Kevin Mazur/WireImage Since when does the weekend begin on hump day? We’d like to live in Gigi Hadid’s world because that’s what the 21-year-old model and shoe designer suggested on Wednesday when she took to Instagram to share one of the cutest squad images to date. The blonde uploaded a photo booth–like black-and-white image of herself and BFF Kendall Jenner—and wished the brunette a happy birthday, one day prior to the catwalk regular’s major 21st milestone. “Happiest birthday weekend, my Ken,” Hadid wrote as the caption to the image and included heart and martini class emojis. In the shot, Hadid holds on to Jenner as they goofily laugh together. So does the weekend truly begin today? We’re not quite sure how Jenner plans to ring in her 21st year, but something tells us the star is in celebratory spirits. A few days ago she shared glimpses at the skintight black latex ensemble she wore for Halloween. Gigi Hadid Dons a Sidewalk-Skimming White Coat in N.Y.C. RELATED VIDEO: How to Get a Body Like Kendall Jenner We're expecting more than one epic bash to come down the pipeline.