Gigi Hadid's birthday party was just about as glamorous and stylish as she is. Ahead of her 24th birthday, the model held a star-studded bash in NYC on Monday night. Guests included her sister Bella Hadid and mom Yolanda Hadid, along with some of her celebrity BFFs including Taylor Swift, 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 instead (perhaps another clue about new music?). Even the guest of honor wore a pair of jeans stitched with the number "24" to celebrate her "Kobe Bryant year." See all the photos from her big bash ahead!