“My Sunshine,” the 44-year-old crooner captioned a photo of himself holding his newborn daughter, who was born on January 30.
Kournikova, 38, shared her own photos of the baby shortly after her birth. In one image, the Hero singer is seen kissing his athlete partner while placing his right hand on the infant’s head.
Their latest addition joins two-year-old twins Nicholas and Lucy, who were born in December 2017.
In a rare move for the very private mum, Kournikova shared an adorable video of the siblings with the public last month:
The couple met in 2001 on the set of his music video for the song Escape and aside from a brief split in 2013, they have been together since. They are not married.
“We’re just as happy. There comes a point when you’ve been with someone for a certain amount of time that I believe that you are like, married,” Iglesias said of their decision not to wed, according to The Sun.
“I guess the only difference is that we haven’t walked down the aisle.”
Iglesias previously said his dad Julio still hadn’t met Anna, saying: “They still haven’t met, no. They have to meet at some point.”
This article originally appeared on Page Six and was reproduced with permission