Tyra Banks has just become a mum to a baby boy!

Surprise! Congrats to Tyra, who's just become a first time mum. The 42-year-old model-turned-presenter-turned-producer welcomed a baby boy with her photographer boyfriend Erik Asla via a surrogate yesterday.

She posted the below to Instagram captioned: "The best present we worked and prayed so hard for is finally here. He's got my fingers and big eyes and his daddy Erik's mouth and chin. 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."

According to Us Weekly, Tyra had previously discussed her issues conceiving: "We're kind of going through this similar thing with IVF. "And, you know, putting needles in your tummy every day and having to come to work and smile when you feel like you want to throw up and lay down - I can't believe I'm saying this right now!"