Kelly Osbourne's Son Will Have Both Her and Sid Wilson's Last Names After 'Biggest Fight'

"We both made our child, so he should have both of our last names,” said the TV personality

<p>Kelly Osbourne/Instagram</p> Kelly Osbourne, Sidney and Sid Wilson

Kelly Osbourne/Instagram

Kelly Osbourne, Sidney and Sid Wilson

Before Kelly Osbourne and Sid Wilson became parents, they weren’t on the same page on what to name their son, Sidney, 15 months.

Kelly, 39, shared with her parents Sharon and Ozzy Osbourne in the Feb. 20 episode of their podcast, The Osbournes Podcast, that her biggest fight with her son’s father was over their child’s last name.

As the family discussed the “debate” of naming children traditional or unique names, Kelly revealed that naming their son with two last names sparked a disagreement with Sid, 47.

“This is personal, and I didn’t expect to ever talk about this, but I’m going to,” Kelly began. “It’s the biggest fight me and my baby’s father have ever ever ever had, and probably ever ever will.”

<p>Kelly Osbourne/Instagram</p> Kelly Osbourne shows off son Sidney's first tooth.

Kelly Osbourne/Instagram

Kelly Osbourne shows off son Sidney's first tooth.

“I wanted our son to have both of our last names, and he wouldn’t let me. We had a huge fight,” Kelly continued. “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.”

“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,” revealed Kelly. “We are going to legally change our son’s name to have both of our last names.”

“Well, it’s in his favor,” added Ozzy, 75, while Sharon, 71, applauded the announcement.

“We both made our child, so he should have both of our last names,” added Kelly.

Related: Kelly Osbourne Says There Was 'No Adjustment Period' to Becoming a Parent as She Praises 'Mom Life'

The pair first met when Wilson’s band Slipknot played at Ozzfest, the music festival founded by Kelly's parents, in 1999. But after 23 years of friendship, they moved from platonic to romantic.

Then, to mark their first Valentine’s Day together in 2022, Kelly shared a photo of kissing her new boyfriend. "You are my best friend, my soulmate and I am so deeply in love with you Sidney George Wilson. 💜," she wrote in the Instagram caption.

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<p>Frazer Harrison/Getty </p> Kelly Osbourne and Sid Wilson at the Grammys in February

Frazer Harrison/Getty

Kelly Osbourne and Sid Wilson at the Grammys in February

Related: Kelly Osbourne and Slipknot's Sid Wilson Make Red Carpet Debut at 2024 Grammys

Shortly thereafter, the couple announced that they were expecting their first child together. In November 2022, the pair welcomed their son, Sidney.

Kelly shared the first photo of her son in June 2023. Since then, she has shared with followers her motherhood journey, including snapshots of her son's Thanksgiving and Christmas this past year. For Sidney’s first birthday, she penned a heartfelt message to him — with an adorable photo of the baby smiling for the camera. 

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