Gigi Hadid's birthday party was just about as glamorous and stylish as she is. Ahead of her 24th birthday, the model [1] held a star-studded bash in NYC on Monday night. Guests included her sister Bella Hadid [2] and mom Yolanda Hadid, along with some of her celebrity BFFs including Taylor Swift [3], Ashley Graham, Hailee Steinfeld, Martha Hunt, and many more! The party seemed to have a jean theme as many of the attendees wore denim looks, minus Taylor, who opted for a floral outfit [4] instead (perhaps another clue about new music? [5]). Even the guest of honour wore a pair of jeans stitched with the number "24" [6] to celebrate her "Kobe Bryant [7] year." See all the photos from her big bash ahead!