The TV chef - who has Matilda, 17, twins Jack and Holly, 19, and Megan, 21, with wife Tana - announced he had welcomed another son named Oscar James into the world on Thursday (04.04.19), and his children have taken to Instagram to pay tribute to their newborn sibling.
Alongside two pictures of herself holding Oscar, Holly wrote: "Welcome to the world baby Oscar James I love you so so much already and thank you for the happiness you have bought us all. (sic)"
Jack, who is no longer the only male offspring in the household, added to his profile: "Love you bro."
Matilda shared some pictures of her parents with their baby boy, and added: "I love you so much, welcome to the world baby boy."