Sid Wilson took inspiration from Kelly Osbourne's nickname when designing her engagement ring.

The Slipknot rocker proposed to his long-term partner - with whom he has two-year-old son Sidney - backstage at her dad Ozzy Osbourne's final Black Sabbath show in Birmingham, England, over the weekend, and it has now been revealed he played an "instrumental role" in creating the gold-and-diamond jewellery he presented the 40-year-old star with when he popped the question.

An announcement from jewellers Mouawad, who created the ring, explained: "Sid played an instrumental role in shaping the vision for the ring, sharing intimate details and inspiration that brought the design to life.

"At the heart of this creation is a touching nod to Kelly's nickname among her close friends and family-- 'Honeybee'.

"Drawing from this affectionate moniker, the ring's design features a unique beehive-inspired structure, seamlessly marrying sentiment with elegance. The result is a dazzling 18K yellow gold ring adorned with both white and yellow diamonds, as well as citrine accents, echoing the warmth and radiance of the design's muse.

"The centerpiece is a stunning 2.5 carat round brilliant-cut diamond, symbolising the enduring and multifaceted nature of love."

Explaining his nickname for Kelly, Sid told jeweller Pascal Mouawad in a behind-the-scenes video: "Coincidentally, a friend of hers, Joan Rivers, used to call her this. I was a nickname she had for her. I didn't know this, it was an amazing coincidence.

"It was because she would buzz around, like spread this good energy around, like a bee.

"I want the ring to reflect this somehow, using honeybees and pollen and diamonds, obviously."

And the 48-year-old rocker was thrilled with the end result.

He said: "It's blinding, it's perfect, she's going to love that. It's beautiful… It's going to be hard to keep it a secret…it's better than I had expected. It's literally a fairytale."

Kelly shared footage from Sid's proposal on Instagram on Sunday (06.07.25), which featured her dad and mum Sharon Osbourne unwinding backstage at Villa Park with family and friends.

Sharon could be heard saying: "You've got to be quiet!"

Sid then took Kelly's hand and said: "Kelly, you know I love you more than anything in the world!"

But before he could ask the important question, Paranoid hitmaker Ozzy jumped in.

He laughed: "F*** off, you are not marrying my daughter!"

Sid then continued: "I want to spend the rest of my life with you - and ask in front of all of our family and friends, Kelly, will you marry me?"

Kelly looked stunned before Sid stood up and put a ring on her finger while those around them cheered.

Mouawad's collections are available online at www.mouawad.com and at the flagship London boutique, located at The Peninsula Hotel.