NEW YORK, NY - APRIL 24: Tyra Banks attends the TIME 100 Gala celebrating TIME'S 100 Most Influential People In The World at Jazz at Lincoln Center on April 24, 2012 in New York City. (Photo by Fernando Leon/Getty Images for TIME)
The legendary supermodel and former host of "America's Next Top Model" welcomed her baby boy into the world in late January and released a statement about her son on Instagram Thursday.
"The best present we worked and prayed so hard for is finally here," she wrote below a picture of a baby cap. "He's got my fingers and big eyes and his daddy Erik's mouth and chin."
Banks and her boyfriend, photographer Erik Asla, named the child York Banks Asla.
The 42-year-old talk-show host revealed in the message that the couple used a surrogate mother to carry and birth her son.
"As we thank the angel of a woman that carried our miracle baby boy for us, we pray for everyone who struggles to reach this joyous milestone," she wrote. "York Banks Asla, welcome to the world."
Banks, who openly struggled to conceive a child, shared some of her experiences with infertility with People magazine:
"I've had some not happy moments with that -- very traumatic moments. It's difficult as you get older. It's not something that can just happen."
Now, her dreams of starting a family of her own have come true.
"As I gaze into the beautiful eyes of my son, I think about all the people who struggle with fertility or carrying a child and continue to pray for them every day," she told People. "My hopes and dreams are filled with well wishes that they get to feel what my little treasure, York Banks Asla, feels like in my arms."
York may be the first of many children Banks hopes to have. Last year she told the magazine that she didn't want just one child -- she wanted a "litter."
"I want to be the kind of mom where my child can come to me for anything," she said last year.
Asla has three daughters who live with him in Los Angeles, according to his profile on Photo Artwork Agency.