Model Gigi Hadid (L) and singer Zayn Malik in the Manhattan borough of New York
Gigi Hadid and Zayn Malik have been dating since 2015 Reuters

Gigi Hadid celebrated her 22nd birthday on 23 April, and Zayn Malik made sure it was a memorable one! The former One Direction singer took to Instagram to share an image of himself kissing the Victoria's Secret model.

Malik captioned the image: "happy birthday to my everything"

Gigi had also shared a picture herself holding a birthday cake, as Malik planted a kiss on her cheeks.

Meanwhile, Bella Hadid also took to the photo sharing website to send birthday wishes to her sister. She wrote: "Happy birthday to my best friend FOR F**king LIFE!!!!!!!! ❤️❤️My role model! My person. I feel so lucky every day to call you my sister. I didn't know anyone could be so generous, smart, funny, talented, hard working, artistic, loving, respectful AND beautiful all at the same damn time!!! You make me laugh until I pee and even when I don't want to smile, you are just about the only person that can make me. Every one that knows you, immediately feels the incredible energy that radiates throughout you. ✨✨Thank you for always being yourself, nothing more and nothing less. You are my other half & I don't know what I would ever do without you. I love you with all of my heart Squeegee. ❤️ @gigihadid"

Rumours that Perrie Edwards' former boyfriend and Gigi are romantically involved started after the two were spotted in the same car following the American Music Awards after-party at Los Angeles' The Nice Guy club on 24 November 2015. The couple's relationship has grown stronger than ever since then.