That must make father Ned Rocknroll feel a little foolish, but sure it's probably not the first time. The conversation regarding Bear's proposed surname came about while Kate was defending the fact that she's had three babies fathered by different husbands.
Speaking with Glamour Magazine recently, Kate said: "No one has a right to comment on anyone's life or the choices I do or don't make. It's very easy to be judgemental until you know someone's truth. People have no idea at all. It baffles me, truly, that you can publicly treat a person like that. It's not very nice. I'm really sorry to the nation's press that I fell in love and got pregnant; I do apologise if you deem that irresponsible."
The 38-year-old star - who has a 13-year-old daughter, Mia, with her ex-husband Jim Threapleton, and a 10-year-old son, Joe, with her second ex-spouse Sam Mendes - also scoffed at the idea of giving her newborn son Ned's surname: "We haven't ever really had that conversation; it was always going to have my name. Of course we're not going to call it Rocknroll. People might judge all they like, but I'm a f**king grown-up." Next thing you know, she'll be criticised for calling Bear 'it'! Crazy!
Refreshingly enough, Kate added that she isn't interested in losing her baby weight as soon as possible, joking: "Having just had a baby, I'm not going to be thinking about my arse." Instead, she wants to provide her kids with a "childhood like I had, where you climb trees and graze your knee."