Gigi Hadid and ex Zayn Malik celebrated their daughter Khai's fourth birthday with heartfelt tributes on social media. Gigi shared a touching video on Instagram, highlighting quality moments with Khai at the park, while expressing her love for her daughter with captions like "4 years of YOU" and "Happy birthday mama's Angel!" She also posted images of a vibrant rainbow birthday cake. Zayn conveyed his sentiments through a photo of him with Khai at the beach, emphasizing the joy she brings to his life. Both parents reflected on their pride and joy in raising Khai, showcasing her adventurous spirit and unique personality. Gigi's recent posts also offered a glimpse into their summer activities, emphasizing the balance between her modeling career and motherhood.