Zayn Malik celebrated his daughter Khai's fourth birthday with a sweet post shared to social media on Thursday (September 19), praising the child for how much she's changed his life. The "PILLOWTALK" hitmaker and his former partner,

Gigi Hadid and Zayn Malik have kept much of their daughter Khai's life out of the spotlight, but in a touching surprise on her fourth birthday, doting mum Gigi revealed Khai's full name for the very first time.

Zayn celebrated a special occasion on Thursday (September 19) - his daughter Khai's fourth birthday. The "Pillowtalk" singer took to Instagram to share a heartfelt message for his baby girl. "Happy birthday to the most important person in my life,

Zayn Malik and Gigi Hadid are two proud and nostalgic parents on their sweet daughter Khai’s birthday. The celebrities — who had an on-and-off relationship and split about a year after Khai was born — took to Instagram to share touching tributes to their 4-year-old,