Newly single Kelly Osbourne showed she’s fighting fit as she took to the stage to perform with Scissor Sisters at London’s Mighty Hoopla on Sunday.
The event, held at Brockwell Park, saw Kelly, 41, looking happy and healthy as she joined the American pop rock band to perform her 2005 track One Word.
The band were also joined by Sir Ian McKellen and Belinda Carlisle on stage at Europe’s largest LGBTQ+ music festival.
Kelly looked incredible wearing a blue lamé dress with black platforms and she wore her blonde locks in a slicked back style.
It was the first time her son Sid, three, had watched her perform and he was seen dancing backstage.
A close friend told Daily Mail: ‘She’s such a good mum. She looks amazing and this is such a beautiful opportunity to prove the haters wrong.
Kelly Osbourne joined Scissor Sisters on stage at London’s Mighty Hoopla on Sunday while son Sid watched backstage – as friends say she’s ‘looking so good and healthy’
Kelly posed backstage with her close friend Daniel Nguyen who came along to support her
The event, held at Brockwell Park, saw Kelly, 41, looking happy and healthy as she joined the American pop rock band to perform her 2005 track One Word
It was the first time her son SId, three, had watched her perform and he was seen dancing backstage
‘She was going through grief with her dad passing away and people were so awful to her. She just needed time to settle back into her life again.
‘She is looking so good and healthy.’
It’s been a tough time for Kelly, whose father Ozzy died on July 22, 2025, at the age of 76 following a cardiac arrest.
She ended her engagement to Slipknot DJ Sid Wilson in March and was linked to ‘new partner’ Kiinicki in March, who uses they/them pronouns.
Kelly had been so grief-stricken by the loss of her beloved father that she had been struggling to eat and was forced to hit back when trolls criticised her weight loss.
Her friend added that she had the best time on Sunday.
They said: ‘She really enjoyed herself and had the best time and was excited for the opportunity to be with the LGBTQ+ community who have been her biggest supporters.
‘And to have her son watch her perform for the first time was really special.’
Kelly Osbourne’s music career spans two albums, Shut Up in 2002 and Sleeping In The Nothing in 2005.
Her biggest hit was a collaboration with her father, Ozzy, on a cover of Black Sabbath ballad Changes.
Kelly quietly ended her engagement in March, just seven months after Slipknot DJ Sid Wilson proposed at her late father’s final concert with Black Sabbath in Birmingham
Black Sabbath legend Ozzy, who was living with Parkinson’s, died of heart failure on July 22 last year, just two weeks after performing a farewell concert with his bandmates in Birmingham
In March, Kelly hit out at ‘cruel trolls’ who ‘dehumanised her’ following her appearance at the Brit Awards in Manchester.
Kelly attended the ceremony to collect a posthumous Lifetime Achievement for her father.
But as well as celebrating Ozzy’s life during the evening, Kelly also was seemingly subject to negative comments about her appearance.
Speaking on the backlash, she said: ‘There is a special kind of cruelty in harming someone who is clearly going through something.
‘Kicking me while I’m down, doubting my pain, spreading my struggles as gossip, and turning your back when I need support and love most.
‘None of it proves strength, it only reveals a profound absence of character. I’m currently going through the hardest time of my life. I should not even have to defend myself. But I won’t sit here and allow myself to be dehumanised in such a way.’
Kelly had previously hit back at ‘body-shaming’ trolls who criticised her recent weight loss ahead of her Brits appearance, where she stepped out with her mother Sharon.
Kelly posed for snaps with Sharon, 73, where the mother and daughter duo both dressed in black for the occasion as they arrived at the Co-op Live Arena.
The singer and TV personality, who denies using weight-loss jabs, looked considerably slimmer while attending Ascot Millinery Collective’s latest catwalk presentation at Mayfair’s Claridge’s.
She has since called out her online abusers for subjecting her to a torrent of vile comments, among them an unsavoury remark about her late father, Ozzy, who passed away last July.
In March, Kelly hit out at ‘cruel trolls’ who ‘dehumanised her’ following her appearance at the Brit Awards in Manchester
Taking to Instagram, Kelly shared a screenshot of the distasteful message, which read: ‘Looks like a dead body… she’s too thin and fragile… looks like she’s going to see her dad soon,’ followed by a string of laughing emojis.
Commenting on Monday, the mother-of-one, who also shared a handful of appalled responses to the post, wrote: ‘Literally can’t believe how disgusting some human beings are! No one deserves this sort of abuse!’
Sharing a second post, she added: ‘This too shall pass, but like, holy f**k.’
Kelly has been forced to repeatedly defend herself over her physical appearance following the death of her father at his Buckinghamshire home last summer.
Over the years, the British TV personality has been open about her insecurities around weight, which dates back to her teen years while starring in her family’s reality show, The Osbournes.
‘I got pulled into the head of the agency’s office and he … gave me a whole speech about how I was too fat for TV and I needed to lose weight, and that if I lost weight, I would look better,’ she revealed on The Osbournes podcast last year.
‘And he was just saying, “You’re not a movie star, but you could be one if you lost weight.”‘
Since then, Kelly’s weight journey has been a rollercoaster.
She underwent gastric sleeve surgery in 2018, calling it ‘the best thing I have ever done’, and credited a combination of surgery, strict diet and high-intensity interval training for shedding 85lbs.
But pregnancy added another twist. When she was expecting son Sidney in 2022, Kelly gained around 100lbs and developed gestational diabetes, later admitting she avoided the spotlight because of it.
‘She has told people that she got skinnier for her kid. She wants to be around for her kid and play and be with her kid for a long time, and now that she lost her dad, she sees that as being something even more important,’ our second source said.
‘She doesn’t want to be the weight she used to be and she is going to do whatever she needs to do to stay skinny.’
Kelly has repeatedly fended off critics who scrutinize her dramatic transformation, most notably denying Ozempic rumours.
‘I know everybody thinks I took Ozempic. I did not take Ozempic. I don’t know where that came from. My mom took Ozempic,’ she previously told Extra.
But those close to Kelly are keeping a watchful eye, with a source telling the Daily Mail that ‘nobody near her is looking to provide an intervention, but people have noticed and are monitoring it’.
‘Kelly is definitely not concerned with how she looks and would tell anyone that would bring it up to her to go screw off, but she does get upset over people talking about it,’ the source added.
‘She is very skinny. She has been working on her weight her entire life and the stress of her dad passing away has been a major struggle to deal with that is taking a toll on her look and health.’
