The singer shared a photograph of herself cuddling her newborn on Instagram.com on Saturday (07Nov15), with the caption, "He's here! Baby Jesse Jones, born on Tuesday 3rd November and now home safe with his family. We are all a bit smitten. Welcome to the world, darling boy. Xx".

Sophie, who is married to The Feeling guitarist Richard Jones, also has sons Sonny, 11, Kit, six, and Ray, three.

The Murder on the Dancefloor hitmaker previously admitted that being pregnant with her fourth child had been tough with a big brood of boys to look after, saying, "I think it's a little bit harder to allow myself to be pregnant because obviously I've got the three others that I'm looking after and they don't cut me a lot of slack. I'm not allowed to sit down that much."