United Kingdom, July 13 -- Olivia Culpo has given birth to a baby girl.

The 33-year-old star has taken to social media to announce that herself and husband Christian McCaffrey have welcomed their first child into the world.

Alongside a photo of her daughter's tiny hand, Olivia wrote on Instagram: "Colette Annalise McCaffrey [heart emoji] (sic)"

Christian, 29, has also shared the same post on his own social media account.

And Olivia has already hailed the sports star as the "best daddy in the world".

The brunette beauty wrote on the photo-sharing platform: "Colette is so lucky to have the best daddy in the world. A love like no other."

Olivia actually described childbirth as the "scariest and most rewarding of all experiences".

The ...