"Four years ago today my life changed forever and I wouldn’t be the man I am today without you," Zayn Malik wrote in an emotional 4th birthday post in honor of his daughter Khai on Thursday, Sept. 19 The singer and model Gigi Hadid, 29, welcomed Khai in 2020 before they split in October 2021

Gigi Hadid and ex Zayn Malik are now proud parents to a 4-year-old, celebrating daughter Khai’s birthday with great fanfare.

The supermodel posted an Instagram tribute for her daughter Khai's 4th birthday which included some adorable snaps from the little ones party.

Gigi Hadid and ex-boyfriend Zayn Malik have been loving life with their daughter, Khai, ever since her arrival. Us Weekly confirmed in April 2020 that the model was pregnant with her and Malik's first baby.

Exes Gigi Hadid and Zayn Malik have kept their daughter, Khai—who turned 4 on Sept. 19—out of the spotlight, choosing not to reveal her face on social media or reveal many details about the child, including her last name.

Fans were excited after the 29-year-old model - who split from the One Direction star, 31, in 2021 - finally shared Khai's surname after previously evading the question.