The wife of Manchester United and England footballer Wayne Rooney announced the birth of their third child on Sunday, 24 January, saying: "Our gorgeous little Boy arrived today!! Kit Joseph Rooney .... 8Ib 1oz. We are all over the moon!!"
Wayne posted an identical message to his Twitter account.
The couple - who met as teenagers before Wayne's superstardom - are already parents to sons Kai, six, and Klay, two. (All these K names, very Kardashian!)
Coleen and Wayne had chosen not to learn their baby's sex ahead of the birth, with Coleen admitting a girl would "complete the family" but saying all she hoped for was a healthy child.
There had been speculation a girl was on the way thanks to an Instagram post shared by Coleen over Christmas, which showed two male elves on the shelf and a newly bought female one.
So far we've seen no pictures of baby Kit, but we're hoping Coleen and Wayne follow in their own footsteps, as after the birth of Klay two years ago, they shared a beautiful photo of the whole family together at the hospital.
Congrats to Coleen and Wayne!