Kelly Osbourne proved she is stepping back into the spotlight with strength and confidence as she joined Scissor Sisters on stage at London’s Mighty Hoopla on Sunday.
The 41-year-old star, who is newly single, appeared happy, healthy and full of energy as she performed at the event in Brockwell Park.
Kelly joined the American pop rock band to perform her 2005 track One Word, delighting the crowd at Europe’s largest LGBTQ+ music festival.
The performance was made even more special because her three-year-old son Sid watched her sing for the first time from backstage, where he was seen dancing along.
Kelly looked incredible in a blue lamé dress paired with black platforms, while her blonde hair was styled in a sleek, slicked-back look.
The Scissor Sisters were also joined on stage by Sir Ian McKellen and Belinda Carlisle during the festival.
A close friend told the Daily Mail that Kelly looked “amazing” and said the moment was a beautiful opportunity for her to prove critics wrong.
“She’s such a good mum,” the friend said. “She looks amazing and this is such a beautiful opportunity to prove the haters wrong.”
The source added that Kelly had been through deep grief after losing her father, Ozzy Osbourne, and had needed time to settle back into life again.
“She is looking so good and healthy,” they said.
It has been an incredibly difficult period for Kelly. Her father, Black Sabbath legend Ozzy, died on July 22, 2025, at the age of 76 following a cardiac arrest. 
Ozzy, who had been living with Parkinson’s, passed away just two weeks after performing a farewell concert with Black Sabbath in Birmingham.
Kelly also quietly ended her engagement to Slipknot DJ Sid Wilson in March, just seven months after he proposed at her late father’s final concert.
She was later linked to Kiinicki, who uses they/them pronouns.
Friends say Kelly had been so devastated by the loss of her father that she had struggled to eat and was forced to defend herself against cruel online comments about her weight loss.
Her friend said Sunday’s performance meant a great deal to her.
“She really enjoyed herself and had the best time,” the source said. “She was excited for the opportunity to be with the LGBTQ+ community who have been her biggest supporters.”
They added that having her son watch her perform for the first time made the day even more special.
Kelly’s music career includes two albums: Shut Up, released in 2002, and Sleeping In The Nothing, released in 2005.
Her biggest musical hit was her emotional collaboration with her father Ozzy on a cover of the Black Sabbath ballad Changes.
Earlier this year, Kelly spoke out against cruel trolls who attacked her appearance after she attended the Brit Awards in Manchester.
She had gone to the ceremony to collect a posthumous Lifetime Achievement honour for her father.
But instead of only celebrating Ozzy’s legacy, Kelly was subjected to hurtful comments about the way she looked.
Responding to the backlash, Kelly said there was a special kind of cruelty in hurting someone who was clearly going through something.
She said people had been “kicking” her while she was down, doubting her pain and turning her struggles into gossip.
Kelly said she was going through the hardest time of her life and should not have to defend herself.
She added that she would not allow herself to be dehumanised.
Kelly had previously hit back at body-shaming trolls who criticised her weight loss before the Brits, where she appeared alongside her mother Sharon Osbourne.
The mother and daughter both wore black as they arrived at the Co-op Live Arena.
Kelly, who has denied using weight-loss injections, appeared noticeably slimmer while attending a fashion presentation at Claridge’s in Mayfair.
She later called out online abuse after receiving vile comments, including one deeply offensive message about her late father.
Sharing a screenshot of the comment on Instagram, Kelly wrote that she could not believe how disgusting some people could be and said no one deserved that kind of abuse.
In a second post, she added: “This too shall pass.”
Kelly has faced repeated scrutiny over her appearance since Ozzy’s death.
Over the years, she has been open about her struggles with body image, which began when she was a teenager starring in her family’s reality show, The Osbournes.
Speaking on The Osbournes podcast last year, Kelly recalled being told by someone in the industry that she was too heavy for television and should lose weight.
Her weight journey has included gastric sleeve surgery in 2018, which she once called “the best thing I have ever done.”
She later credited surgery, strict diet and high-intensity interval training for helping her lose 85lbs.
Pregnancy brought another challenge. When Kelly was expecting her son Sidney in 2022, she gained around 100lbs and developed gestational diabetes.
A source said Kelly has told people she became slimmer for her child because she wants to be around for him and play with him for a long time.
The source added that losing her father has made that goal feel even more important.
Kelly has repeatedly denied rumours that she used Ozempic, previously saying her mother Sharon had taken it but she had not.
Those close to Kelly are said to be keeping an eye on her, though no one is planning an intervention.
A source said Kelly is not concerned about how she looks and would push back against anyone who brought it up, but admitted she becomes upset when people keep discussing it publicly.
Now, after a painful year marked by grief, personal change and public scrutiny, Kelly’s Mighty Hoopla performance has become a powerful sign of resilience.
With her little boy watching proudly backstage, Kelly Osbourne’s return to the stage was more than just a performance — it was a moment of strength, healing and quiet triumph.
Source: Daily Mail — https://www.dailymail.co.uk/
