Kelly Osbourne has recently revealed the reason she is legally changing her 15-month-old son Sidney's name - a decision that her partner Sid Wilson has only just come round to.
When the new parents welcomed Sidney in November 2022, they kept details about his arrival very much under wraps.
Kelly's mom Sharon was the one who first made Sidney's name public - much to Kelly's dismay.
"I am not ready to share him with the world. It is no one's place but mine to share any information on my baby," Kelly wrote in a statement on social media not long after Sharon revealed her grandson's name.
But as it turns out, the little one's moniker was a work in progress.
Recently, the TV personality, 39, shared that she wasn't too thrilled that her young son only had his dad, Sid's last name.
Kelly spoke about the issue with her parents, Sharon and Ozzy Osbourne, on their family podcast, The Osbournes Podcast.
According to the mom of one, she and Sid had the "biggest" falling out of their relationship when he refused to agree to their baby having a double-barreled last name.
"This is personal, and I didn't expect to ever talk about this, but I'm going to," Kelly shared in the episode, available since February 20.
"It's the biggest fight me and my baby's father have ever ever ever had, and probably ever ever will."
She continued: "I wanted our son to have both of our last names, and he wouldn't let me. We had a huge fight.
"I feel that I was forced into doing something I didn't wanna do and I can never ever ever forgive him for that, but we can move on."
She added: "So right now my son doesn't have a double-barreled last name, but after lots of eye-opening conversations and some couples therapy, he has seen the light.
"We are going to legally change our son's name to have both of our last names. We both made our child, so he should have both of our last names."
When she was pregnant, Kelly shared that she wasn't too pleased that Ozzy had told everyone the sex of her unborn baby before she could do that herself.
"I mean, he's told everyone the gender of my baby before I ever got the chance to, and I'm just like, 'Aww Dad, come on. Like, come on," she told Entertainment Tonight.
"But I will say, every single day he does this little song and this little dance about how excited he is, and he is so excited that it's a boy."
She added: "It's the first – out of me and my brother, it's the first boy, so, he's like planning all these things."