Kelly Osbourne and her longtime partner, Sid Wilson, are engaged!

“Oh, and this happened yesterday!” Kelly, 40, captioned Sunday, July 6, Instagram footage from her dad Ozzy Osbourne’s Black Sabbath concert the day before.

In the clip, Kelly joined Ozzy, 76, and mom Sharon Osbourne backstage at the Birmingham, England, venue when Wilson, 48, got down on one knee.

“Kelly, you know I love you more than anything in the world,” Wilson said. “Nothing would make me happier than spending the rest of my life with you. In front of your family and all of our friends, Kelly, will you marry me?”

Slipknot's Sid Wilson Ditches Mask on Red Carpet With Kelly Osbourne

Kelly put her hands in front of her face before nodding “yes.” Wilson also turned to show off the diamond ring to Ozzy.

Kelly and Wilson have been together since February 2022, welcoming son Sidney the following November.

“I truly believe my baby saved me and made me a whole human,” Kelly said in her Us Weekly cover story published in October 2024. “I don’t think I knew what love was before having a baby.”

She added, “I don’t remember life before having the baby because everything has changed. I didn’t realize just how powerful the feeling of love was [going to be] when you have the baby. It’s the most … addictive feeling I have ever felt. You realize in that one second, ‘You’ve given me purpose like nothing has ever given me before.’ I don’t think I had purpose.”

At the time, Kelly also gushed to Us that the Slipknot performer was The One.

“I found my guy. We don’t need the certificate, but I know Sid really wants to get married, so we will get married,” she said. “It’s not as important to me. I’ve worn so many beautiful dresses and had so many moments that have been just about me, so that whole idea of a big day isn’t as important to me.”

Kelly Osbourne’s Ups and Downs Through the Years

Kelly further joked that “never in a million f***ing years” did she believe she would “end up with a rock star partner” like her dad.

“But, I did,” she quipped. “We’ve known each other for 25 years.”

Kelly, who proclaimed to Us that she “definitely” wants to have more children down the line, had attended her dad’s musical farewell on Saturday.

“I just wanted to take a moment to say thank you,” Kelly said in an Instagram Story video earlier on Sunday. “Thank you to everyone who came to the show last night, [and] thank you to everybody who was involved in the show last night. You have no idea what it did for my dad.”

Ozzy confirmed his Parkinson’s disease diagnosis in 2020.