Kelly Osbourne made her first public appearance following her firm response to critics of her significant weight loss. She attended ICAP’s annual charity event on Thursday.

The 41-year-old star of “The Osbournes” joined forces with The King’s Trust for the event, where the brokerage company and its employees pledged an entire day’s revenue to support various charitable initiatives worldwide.

Sporting a festive red suit that highlighted her slimmer figure, Kelly was actively involved in the event, answering phones and interacting with attendees.

Previously, Kelly addressed negative comments from online trolls who suggested she appeared unwell due to her weight loss. She reassured everyone that she was managing her health in the aftermath of her father, Ozzy Osbourne’s, passing.

Kelly has been candid about losing 85 pounds after giving birth, and she has refuted claims of using injections to aid her weight loss.

On Tuesday, the star also showed her slender frame while attending the launch of Juliet Sear’s new signature bakeware collection at Fortnum & Mason.

Kelly Osbourne has been seen for the first time since blasting trolls who have criticised her extreme weight loss , as she attended ICAP’s annual charity day on Thursday

The Osbournes star showed off her trimmed-down figure in a festive red suit as she manned some of the phones at the charity event

Kelly then said in a video on Wednesday: ‘To the people who keep thinking they’re being funny and mean by writing comments like are you ill or get off Ozempic, you don’t look right.

‘My dad just died, and I’m doing the best that I can, and the only thing I have to live for right now is my family. And I choose to share my content with you and share the happy side of my life not the miserable side of my life.

‘So to all those people “f**k off”.’

Her mother Sharon broke her silence on Kelly’s weight loss in her Piers Morgan Uncensored interview this week – insisting she’s struggled to eat in the wake of her father Ozzy’s death.

Sharon said: ‘She’s right. She’s not happy, she’s lost her daddy, she can’t eat right now.’

Detailing the impact the trolling has had on her family, Sharon added: ‘It’s a shield for people that are unhappy. 

‘It’s a shield and jealousy and people’s perception of somebody else… And I just feel sorry for people, you know, something wrong with their lives. They’re not happy.’

Kelly has previously been open about her incredible 85lb postpartum weight loss and denied using Ozempic to help her shed the weight.

The star had previously hit back at trolls who claimed she ‘looked ill’ following her weight loss, insisting she was ‘doing the best she could’ in the wake of her father Ozzy’s death 

Emma Thompson and Rory Bremner also took part in the charity day, representing Helen Bamber Foundation and Chickenshed, respectively

The duo were in high spirits as they took turns manning the phones to raise money for charities

She revealed she ‘rapidly’ lost the weight by cutting out ‘sugar and carbohydrates’ and not by using Hollywood’s favourite weight-loss drug.

Kelly first addressed her weight loss in April last year, when she revealed she ‘doesn’t know where it came from’ that she had used Ozempic.

She told Extra: ‘I know everybody thinks I took Ozempic. I did not take Ozempic. I don’t know where that came from. My mum took Ozempic.’

The star also explained that her weight loss was prompted after she developed gestational diabetes during pregnancy.

‘I had gestational diabetes, and I had to lose the weight that I had gained during pregnancy, otherwise I was at a higher risk of actually getting diabetes, which I did not want.

‘I cut out sugar and carbohydrates and I rapidly lost weight.’

During the interview, Sharon also revealed Ozzy’s poignant final ever words to her as she recounted the heartbreaking details from the day he died for the first time.

Black Sabbath legend Ozzy died of heart failure at his Buckinghamshire home on July 22, just two weeks after performing a farewell concert with his bandmates at Birmingham’s Villa Park. 

She told how on the fateful day he had woken at 4am and just 20 minutes later he was dead.

Sharon was left screaming after finding him slumped over in the gym at their house after he had decided to have an early morning workout despite his ill health at the time – including previous battles with pneumonia and sepsis. 

After she heard yelling she ran to the gym – where he normally used a cross-trainer for up to 90 minutes a day.

Sharon said in the interview: ‘He had a heart attack. I ran downstairs, and there he was, and they were trying to resuscitate him, and I’m like, “Don’t — just leave him. Leave him. You can’t. He’s gone.”

‘I knew instantly he’d gone. And they tried and tried, and then they took him by helicopter to the hospital and they tried, and it’s like, “He’s gone. Just leave him.”‘

Before he had headed to the gym Sharon said he had been up and down all night in the bathroom and when it was around 4.30am he said to her ‘wake up’ before she told him that he had already actually woken her up.

Then she said he told her: ‘Kiss me. Hug me tight.’ 

He then went downstairs to the gym for his workout and within 20 minutes he was gone. 

In the chat she also told how Ozzy knew that he was near the end of his life and that a doctor had told him if he did his planned final show he ‘wouldn’t get through it’ – but he insisted on going ahead anyway.

Kelly has previously been open about her 85lb postpartum weight loss and denied using jabs to help her shed the weight (seen this week)

She also insisted she will never get married again after the loss, tearfully saying: ‘That’s it for now.’ 

It comes after last week Sharon and her daughter Kelly posted touching tributes to Ozzy on the late rocker’s birthday.

On what would have been his 77th birthday Sharon took to Instagram with a tribute and shared a series of loved-up and never-before-seen images with him.

She penned alongside the slideshow: ‘My darling husband, I celebrate the day you were born. I will never let go of your hand until I see you on the other side.’

Sharon also shared a video of a floral tribute to Ozzy in Birmingham on Black Sabbath Bridge that read ‘Happy Birthday Ozzy’. The clip was poignantly set to his hit See You On The Other Side. 

The floral display featured a sign from four of his six children that read: ‘We love you daddy, love Louis, Aimee, Kelly and Jack.’

Meanwhile Kelly wrote in her separate tribute: ‘Happy birthday I miss you daddy! I love you more than life itself!’, along with a selection of snaps with him when she was a child. 

In another Instagram post she shared snaps at the floral display area in Birmingham and said: ‘Happy birthday daddy you most certainly did not die an ordinary man! Life without you is hard but not a day goes by that I don’t dedicate my life to loving you and your legacy! 

‘I miss you more than anything in the world. I love you until eternity! What I would not give to watch you blow out just one more candle.’

Ozzy had been battling a number of health issues in the years leading up to his death, including a fall in 2019 at the family’s home, which saw his condition further deteriorate.

Following the news of his passing, Sharon opened up on social media to thank fans for the ‘overwhelming love and support’ shown towards her by his fans.

Sharon admitted she had been ‘carried through’ by those around her, adding she was ‘still finding her footing’ after losing the husband she often said she lived for.