The "Total Eclipse of the Heart" singer, 74, has been married to Robert Sullivan for 52 years, and has credited the longevity of their union to meeting before she found fame.
While Bonnie, whose real name is Gaynor Hopkins, enjoyed huge success with some of the most recognizable hits of the '80s, including "Holding Out For A Hero" and "If You Were A Woman (And I Was A Man)," Robert has an impressive resume, too.
The 76-year-old has made his fortune in property, but before that, he competed in the Olympics, and he's related to a Hollywood icon. Find out more about Bonnie's husband, Robert, below.
Robert was a prominent judoka in the early 1970s and participated in the 1972 Summer Olympics in Munich. He competed for Great Britain in the men's half-middleweight division, placing 18th.
That same year, he won silver at the 1972 European Team Championships in the Netherlands.
Following his retirement from judo, Robert worked as a real estate agent before becoming a successful property developer.
He and Bonnie have invested in property worldwide and reportedly have 22 homes in Berkshire and London, alongside a farm in New Zealand.
While his personal fortune has not been disclosed, he and Bonnie have a reported joint net worth of $40 million, largely bolstered by their successful property investments and her lucrative music career.
Robert worked as a club manager when he met Bonnie in 1970 after she started singing in nightclubs in Swansea, Wales. They married on July 4, 1973.
"I think the secret to our success is that we met before I was famous," she told The Times. "We don't have children because we left it too late to stop taking precautions, and then I had a miscarriage when I was 40. I was unlucky, but I love all my nieces and nephews. Our house in Mumbles is like Paddington Station because everyone wants to come and visit Auntie Gaynor."
He and Bonnie have homes in South Wales and Portugal
Robert and Bonnie split their time between their homes in the seaside village of Mumbles, on the Gower Peninsula near Swansea in South Wales, and Albufeira in the Algarve region of Portugal.
In 2009, they upgraded their five-bedroom property in the Santa Eulalia resort, knocking it down to reportedly build a full-frontal glass home with elaborate garden water features.
While Bonnie describes their home in the Algarve as her "sanctuary," she will always hold a fondness for South Wales.
"I love Mumbles and the Gower coast," Bonnie told the BBC. "When we get the weather, you couldn't be in a better place. I always loved it down this way, and I like keeping close to my family."
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