The Osbournesruled television from 2002 to 2005, with what was at the time the most watched MTV show ever.

Following the larger-than-life, wacky domestic lives of rocker Ozzy Osbourne, his wife Sharon Osbourne and two of their three children Kelly and Jack, the show turned the entire family into household names.

Fifteen years on from the show’s end, the entire Osbourne family are still making constant headlines.

Ozzy Osbourne.

In February 2019, Ozzy Osbourne was diagnosed with Parkinson’s disease.

Ozzy and Sharon Osbourne discuss Parkinson’s disease. Post continues below video.

The 71-year-old revealed his diagnosis this week, tellingGood Morning Americahe could no longer hide his health struggles.

That same month he was admitted to hospital, and later cancelled his 2019 tour dates in March, due to pneumonia and in April, Ozzy suffered a bad fall in his Los Angeles home and had to undergo surgery.

After that, he started experiencing nerve pain and doctors have not been able to pinpoint whether the fall, the surgery or his condition are to blame.

He said he was relieved to be open about his condition.

“To hide something is hard – you never feel proper. You feel guilty. I’m no good with secrets. I cannot walk around with it anymore. It’s like I’m running out of excuses.

“I feel better now that I have owned up to the fact that I have a case of Parkinson’s.”

The Osbournes the year their reality TV show aired. Image: Getty.

It's far from the first time Ozzy's health has been discussed in public. Just months after the finalThe Osbournesepisode aired in 2005, Ozzy said he had Parkin Syndrome, which has similar symptoms to Parkinson's disease. He has been open about suffering from tinnitus, a ringing in his ears and in 2019 said he was "virtually deaf".

Since the shows ending, Ozzy has continued his music career, releasing solo music and reuniting for a show withBlack Sabbath.

In 2009, he appeared with the rest of the family onOsbournes Reloaded,which was cancelled after its first episode aired. In 2016, Ozzy starred inOzzy & Jack's World Detourwith his son, which aired for three seasons until 2018.

In 2016, Ozzy's three year affair with hairstylist Michelle Pugh came to light, leading wife Sharon to leave him. Ozzy admitted to sex addiction and spent time in rehab.

Sharon took him back, and the couple renewed their vows in Las Vegas on Mother’s Day in May 2017.

Ozzy toldHello! Magazinethe event represented a fresh start.

"For me, this was actually our real wedding day. This is the one that I will remember," he said.

"Sharon and I have been through so much, and this honestly feels like a new beginning."

Despite his Parkinson's disease, Ozzy toldGood Morning Americahe intended to get healthy and begin touring again. He'll also release his first album in 10 years, Ordinary Man, on February 21, 2020.

Sharon Osbourne.

A major plot onThe Osbourneswas Sharon's treatment for colon cancer, which Sharon insisted cameras document during the filming of the second season. She survived the disease against a 33 per cent survival prognosis.

In 2012, she said she had undergone a double mastectomy after learning she had a gene that increases the risk of developing breast cancer.

Pre-reality show, Sharon, now 67, was best known as Ozzy's wife and manager butThe Osbournesmade her a household name in her own right.

Sharon was a judge onAmerica's Got Talent's seasons 2-7, and onThe X Factorin the UK for a total of seven seasons. Following the fourth season, Sharon left the show.

She confirmed this was due to her falling out with singer Dannii Minogue.

"I didn't enjoy working with her at all and didn't fancy the prospect of spending six months sitting next to her," she said.

Image: Getty.

Since 2010, Sharon has also been a co-host on daily talk showThe Talk,which sees a five-female host panel discussing current affairs, typically focusing on tabloid headlines, offbeat stories and celebrity news.

Sharon has also written three autobiographies,Extreme,Survivor, andUnbreakable, which detail everything from her childhood, rocky relationships with her parents, marriage, cancer, and extensive plastic surgery and fiction bookRevenge.

Though her career took off, Sharon's home life has not always been so successful. Sharon had been with Ozzy since she was 18, meeting him through her father, who was managing his band Black Sabbath at the time. Ozzy was fired from the band in 1979 and she began to manage his solo career, and they married in 1982.

Daughter Aimee (who refused to appear on the show) was born in 1983, Kelly followed in 1984, and Jack in 1985.

After Ozzy's affair was revealed, Sharon left her husband until he dealt with his sex addiction. Following recovery, they reconciled.

"It was hard to rebuild the trust, but I can’t imagine my life without Ozzy," Sharon said at the time.

"The ceremony was just beautiful. We've fallen in love all over again."

In 2019, Sharon appeared on the British panel showWould I Lie to You?in which guests make statements about themselves and fellow panellists decide if it is true or a lie.

She claimed that during a house fire she made her assistant go back into the house to save pieces of art. She also claimed that she ripped an oxygen mask off the assistant and gave it to her dog, and then fired him when he did not find the situation funny, believing he might have lung damage from smoke inhalation. After the usual deliberations by fellow panellists, she confirmed the incident to be true.

Appearing alongside her husband for hisGood Morning Americaannouncement, Sharon said they were going to travel to Switzerland for medical treatment.

"We're going to go wherever we can go to seek answers."

She said she was ready to see him out performing again.

"This is the longest he's been home and he needs to get back on the road because he's driving me mad," she joked through tears.

Kelly Osbourne.

The profile fromThe Osbourneshelped Kelly launch her music career, which saw her release two albums in 2002 and 2005.

In 2009, she released an autobiography titledFierce,but her main focus has been creating a solid television career. SinceThe Osbournes, Kelly has been involved in a lot more television, appearing as a judge and panellist in a number of shows.

Kelly was a judge and host ofFashion Policefor five years, from 2010 to 2015. She also won third place onDancing With The Starsin 2009, and appeared as a host onProject Runwayin 2013, andAustralia’s Got Talentin 2015.

Kelly returned to music late last year, revealing herself as the Ladybug on season two of the US version ofThe Masked Singer.

In 2015, Kelly faced criticism after an appearance on talk showThe View,where she said "If you kick every Latino out of this country, then who will be cleaning your toilet, Donald Trump?"

Kelly's relationship history has been rocky also. In 2008, she got engaged to model Luke Worrell. In 2010, she called off the engagement after discovering Luke had cheated on her with multiple people, including model Elle Schneider.

"It was so humiliating. Everyone kept telling me that Luke was cheating on me, but I never believed them," she said.

In 2011, Kelly met vegan chef Matthew Mosshart at Kate Moss's wedding. After two years together, they got engaged but by 2014 had called it off.

Most recently, Kelly dated model Jimmy Q for four months before they broke up in August 2019.

Kelly and Jack Osbourne. Image: Getty.

Following her father's health struggles, Kelly said she once feared he would never walk again.

She said the hardest part of his Parkinson's diagnosis was "watching somebody that you love suffer".

"When I saw it myself, it’s really strange how this works because there are some days where I walk in this house and I’m like, ‘There is absolutely nothing wrong with him’, and you think ‘