received a lot of love from her family and friends on her 22nd birthday Sunday, but it was boyfriend Zayn Malik who really made it extra special. Gigi shared an adorable photo on Instagram of Zayn kissing her as she shows off her gorgeous birthday cake. The couple, who has been together for more than a year, looks incredibly happy as they celebrate her big day. Gigi's younger sister Bella Hadid shared a plethora of throwback photos in honor of her big sister's birthday and added a lengthy caption to share her thrilled emotions.