Unknown Osbourne sibling explained why she moved out at 16 and never appeared on their TV show

The 'unknown' Osbourne sibling who has never appeared on the family's reality show has revealed why she decided to stay out of the limelight.

Reality TV was thrust into the mainstream back in the 2000s, with shows like I'm a Celeb, The Biggest Loser, and X Factor ruling the ratings.

Obviously, our screens look very different today, with streaming platforms like Netflix reigning superior, but it's still fun to think about older shows that wouldn't be as popular today, such as The Osbournes.

Focused on the chaotic family life of Black Sabbath lead singer Ozzy Osbourne, the show first hit screens in 2002, running for four seasons until ending in 2005.

The MTV show featured Ozzy, his wife Sharon, their daughter Kelly, and their son Jack, showcasing the everyday shenanigans that the unorthodox family went through, for your viewing pleasure.

If you're wondering if the show was well received at all, Sharon would go on to be a judge on X Factor, while Kelly bagged a role on Project Runway Junior, with Jack starting his own series, called Adrenaline Junkie.

The family shot to stardom in their own unique, foul-mouthed way, with viewers loving the chaos-surrounded home life.

But did you know that there is actually another Osbourne sibling who was missing from the show?

They chose not to be a part of the series, and were often seen blurred out in photos.

If you thought the Osbournes only had two children, you would be mistaken (MTV)

Aimee Osbourne is Ozzy and Sharon's eldest child, but chose to move out before filming for the series started, aged just 16.

She has since opened up on why she chose not to be a part of the show.

She told the Independent in 2020: “Back then, I still felt I was trying to figure out who I was in the chaos of family life.

“So why on earth would I want that portrayed on television? I wanted to protect myself, my parents, my siblings, too. They were very young, very impressionable."

Mother Sharon later revealed how upset she was when Aimee chose to move out, revealing on an episode of The Talk in 2018: “She felt too that she didn't want to grow up on camera.

“She hated the idea — it was appalling to her. And so she left at 16 and I regret every day that she did. It broke my heart when she moved."

Aimee Osbourne pictured with her mother, Sharon (BG002/Bauer-Griffin/GC Images)

Aimee has become a singer and has also had a few acting stints in the years since the reality TV series.

Known as the lead singer of band ARO, she spoke to Cleveland in 2021 to reveal how she got into song-writing: “I started writing, secretly, as a teenager. I also would write a lot of poetry — I was always creative in that way, less academically inclined.

“My parents overheard me kind of singing in my room. It was a friend of my parents who said, 'Oh, you should come and stay with me and work with some producers and see what happens'."