Earlier this year, the former footballer discussed parenting in an interview with Entertainment Tonight (ET), joking he'll be a lot stricter with his daughter than his three boys.
"Obviously Brooklyn is definitely at that age," he said.
"We're strong parents, and strict parents, but we're like most parents. We love our kids and we want the best for them, so we'll see."
Discussing Harper he said: "Oh yeah. That'll definitely be different!"
He previously revealed: "To have a daughter is a whole different story. I'm not saying I love my daughter more, but the boys are independent.
"She's not going out. She's going to be like Rapunzel - up in the tower."
In another interview with ET, he said: "I have no power with that little girl - no power whatsoever.
"I love all my children, of course, equally but I'm definitely stricter with the boys than I am Harper, which gets me in trouble with my wife of course."
Meanwhile, their oldest son Brooklyn has just passed his driving test and has been seen driving a top-of-the-range new car.
