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Kelly Osbourne looked incredible as she posed in a leopard print swimsuit in a number of Instagram snaps on Friday.
The television personality, 41, accessorised with a large sun hat and statement sunglasses as she relaxed by a pool in the sunshine.
But Kelly didn't while away the hours, instead she hit back at Twisted Sister frontman Dee Snider on her Instagram stories after he insulted her late father, Ozzy Osbourne.
Earlier this week, the musician, 71, suggested on X Ozzy had had someone else – like the band's bassist Bob Daisley and late Motörhead frontman Lemmy Kilmister – write songs for him. He also cryptically added Sharon Osbourne, 'doesn't like to share.'
Enraged, Kelly wrote: 'My father's legacy as a musician, songwriter, singer and bandleader speaks for itself.
'His friends, those who worked with him, those who love him, and millions of fans around the world that still continue to buy his records know exactly what he meant what he contributed and what he leaves behind. His legacy will live on eternally.'
Kelly Osbourne looked incredible as she posed in a leopard print swimsuit in a number of Instagram snaps on Friday
The television personality, 41, accessorised with a large sun hat and statement sunglasses as she relaxed by a pool in the sunshine
Kelly then claimed Dee's 'last hit' was the year she was born – 1984.
She continued: 'There's something spectacularly classless about Dee Snider trying to diminish my father Ozzy Osbourne and his extraordinary abilities and achievements when he is no longer here to challenge his allegations.
She then went on to compare Snider's 'brief period of mainstream success more than 40 years ago,' while her father's career 'spanned nearly six decades and helped define heavy metal'.
Kelly went on to brand Dee 'irrelevant'.
She wrote: 'My father doesn't need Dee Snider's approval to establish his place in music history. And trying to make my father smaller won't make Dee Snider bigger. It only reminds everyone of the enormous difference between their legacies and further proves how irrelevant Snider is to the music industry and society as a whole.
However, I would like to thank you Dee Snider for allowing the world to see how truly desperate he really is!'
Dee later clarified on X: 'To be clear, I HAVE NOTHING BUT LOVE FOR OZZY. He was always lovely to me. Black Sabbath changed my life! As a songwriter I can be a little touchy about credit and royalties.'
Dee fronted the heavy metal group through their 1980s peak, famous for anthems like 'We're Not Gonna Take It' and 'I Wanna Rock'. He stepped down in 2026 due to degenerative arthritis and heart strain.
But Kelly didn't while away the hours, instead she hit back at Twisted Sister frontman Dee Snider on her Instagram stories after he insulted her late father, Ozzy Osbourne
Enraged, Kelly wrote: 'My father's legacy as a musician, songwriter, singer and bandleader speaks for itself'
Kelly then claimed Dee's 'last hit' was the year she was born - 1984 - and called him 'irrelevant'
Dee later clarified on X: 'To be clear, I HAVE NOTHING BUT LOVE FOR OZZY. He was always lovely to me. Black Sabbath changed my life! As a songwriter I can be a little touchy about credit and royalties.'
Ozzy at his Black Sabbath farewell gig at Villa Park stadium in July 2025
Kelly enjoyed a coffee in the sunshine with her pal
Rock legend Ozzy died on July 22, aged 76, weeks after he performed his final concert, Back to the Beginning show at Villa Park.
The singer, who sold more than 100 million records, will forever be synonymous with the heavy metal band he formed in his home city of Birmingham in 1969.
With hits that included Iron Man, War Pigs and Paranoid, Black Sabbath's pushing of occult themes proved both hugely popular and controversial, with a future pope even condemning Osbourne for his 'subliminal satanic influence'.
The Daily Mail has contacted Dee's representatives for comment.