After three girls, it's a bit of a novelty having a boy.
So Jamie Oliver didn't waste any time letting the world know when his wife Jools gave birth to the couple's first son – or showing off his picture.
The ecstatic TV chef tweeted an image of the newborn shortly after his arrival, looking pink and ruddy and still wearing his hospital tag.
He wrote: "It's a baby boy guys !!! I'm shock, were all very happy, mum was amazing and both are well and happy x4 kids!! what?!"
"Mr Buddy Oliver .....full name to come from mum....big love joxx"
Before the birth Jamie, 35, said he was hoping for a brother for his girls – Poppy Honey, eight, Daisy Boo, seven, and one-year-old Petal.
He said: "It would be great to have a boy, as I am in a totally oestrogen-filled house.
"But I really don't mind as long as it's healthy".