Gigi Hadid and Zayn Malik welcome a baby girl

Gigi Hadid and Zayn Malik's baby is here.

The model and former "One Direction" singer have welcomed their first child together, Malik confirmed in a tweet on Wednesday night.

"Our baby girl is here, healthy & beautiful," he tweeted. "To try put into words how i am feeling right now would be an impossible task. The love i feel for this tiny human is beyond my understanding. Grateful to know her, proud to call her mine, & thankful for the life we will have together x"

Hadid later shared a photo celebrating the arrival of their little one. "Our girl joined us earth-side this weekend and she’s already changed our world," she captioned her post. "So in love."

The couple has not announced the child's name.

Hadid, 25, confirmed in April that she and Malik, 27, were expecting their first child. A few months later, the model showed off her growing belly in a series of professional photographs.

"Growin an angel :)," she captioned an Instagram post.

The model and her singer boyfriend were first linked in 2015. Although Malik confirmed in 2018 that they'd split, they remained on good terms, and the musician even told GQ magazine that June, "We're still really good friends, and we're still in contact." This past January, TMZ reported that they'd reconciled, and Hadid said in April that they were quarantined together amid the COVID-19 pandemic.

"Especially during this time, it's a nice silver lining to be able to be home and together and really experience [the pregnancy] day by day," Hadid told Jimmy Fallon at the time.