Why 'forgotten' Osbourne sister decided to stay out of the limelight amid unexpected admission from brother Jack

Aimee Osbourne was seen for the first time in a long while during a procession in Birmingham, UK, for Ozzy Osbourne last week - but why has she stayed away from the limelight?

Black Sabbath frontman Ozzy died last month aged 76 at his UK estate after living with Parkinson's disease in his latter years.

The 'Prince of Darkness' performed in his hometown of Birmingham with Black Sabbath just weeks before his passing, with the Brummie raising a whopping $190 million for charity.

Last week, Sharon Osbourne was joined by her children Kelly, Jack and the rarely seen Aimee for Ozzy's funeral.

Kelly and Jack featured heavily and somewhat rose to fame through the family's reality show The Osbournes, while Aimee has lived a life away from the spotlight and is rarely seen in public with her famous family.

Speaking to the Independent in 2015, Aimee spoke about her distant relationship to her family, in particular her siblings - hence the lack of public appearances.

Aimee joined the procession last week (Christopher Furlong/Getty Images)

She told the outlet: "I wouldn’t say there is an ease between us. But there is an acceptance. Do we socialize? No."

At the age of 16, Aimee moved out of the Osbourne family home in Los Angeles to avoid appearing in The Osbournes TV show.

"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?" Aimee added to the Independent.

"I wanted to protect myself, my parents, my siblings, too. They were very young, very impressionable."

Aimee Osbourne has spent much of her life out of the limelight (Monica Schipper/Getty Images)

Last month, Jack said on the Disrespectfully podcast that he and his oldest sister had different feelings on their family's show.

"When the show launched in 2002, Aimee really wanted to be a musician," Jack explained. "She was into artists like Fiona Apple and Mazzy Star, mysterious, moody, almost underground.”

He went on to say that ‘she saw appearing on MTV as low-hanging fruit’ and that ‘she didn’t want to ride our coat-tails’.

However, the reality TV show quickly turned into a hit, though Aimee still refused to join, according to Jack.

"She was like, 'If I come on now, I’ll look like I’m jumping on the bandwagon.' She wanted to stay private and obscure," he continued.

Jack concluded: "We’re just not close at all. We don’t have a great relationship, she’ll be the first to tell you that. It’s no secret."