In an interview with Gurgle magazine, Jools, 37, admits that she named her daughter after a My Little Pony toy - and clearly thinks that other parents should take a leaf out of her book and come up with more imaginative names for their own children.
Nevertheless, she admits that she did let Jamie talk her out of calling their three-year-old daughter Rainbow. They compromised with Petal Blossom Rainbow instead.
She said: "They all have more than one name because I couldn't decide. I'm not sure where Petal Rainbow came from - apparently it's a My Little Pony! I wanted to call her Rainbow but Jamie told me to calm down.
"With Buddy it was quite fun choosing a boy's name, as I hadn't done it before. I hate people's opinions on names. Whatever you call your baby is your decision."
"I really would, but I just don't know. I'm so busy with four. I don't have nights out too often and I haven't had a lie-in for about ten years. Maybe I'm a bit strict and regimented, but when you have four children it's essential to have routines."
More on Parentdish:
Celebs' traditional name choices