The model uploaded footage from one of Joel's recent concerts, as well as a clip of their daughter Alexa and her father backstage.
"I was looking for some cute photos of you and Alexa to send you, when I came across this clip from a recent concert," she captioned the post.
"It reminded me of all the joy you create, and all the sensational sing-alongs you've led. You turn an arena of strangers into a living room full of friends as we all sway in unison."
Brinkley concluded her caption: "I'm sure I'm speaking for everyone in that room when I say please take good care of yourself, we all want you back in that white hot spotlight, you're OUR piano man. And we're always in the mood for your melodies. And we all hope you're feeling all right! We Love You, the kids, me and an arena or two."
Alexa posted her own reaction to the development, writing: "We love you and we got you, Pop! I just wanted to thank you all for the beautiful outpouring of love and support amid the recent news of my father's health diagnosis."
The Piano Man singer took to Instagram on Friday to share that he has been diagnosed with normal pressure hydrocephalus (NPH).
“Billy Joel has announced that he will be cancelling all scheduled concerts following a recent diagnosis of Normal Pressure Hydrocephalus (NPH).” NPH is a condition caused by excess cerebrospinal fluid building up in the brain’s ventricles, which leads to increased pressure which compresses brain tissue and can lead to neurological symptoms.
Brinkley's memoir, "Uptown Girl," details her relationship with Joel, and she confirmed that she discussed the book's contents with him beforehand.
Brinkley and the “Piano Man” star were married in 1985 and had one child, daughter Alexa Ray Joel, before divorcing in 1994.
They met at a dive bar in St Bart’s while Brinkley was reeling from the death of her boyfriend, Olivier Chandon de Brailles – the 27-year-old heir to the Moët & Chandon champagne fortune – in a racing accident in 1983, as the Independent reports.
w 71, Brinkley has been married four times but remains closest to Joel and has named her new memoir, “Uptown Girl”, after the hit 1983 song inspired in part by her.
In an interview with Page Six, Brinkley, known for her hundreds of magazine covers including for Vogue and Sports Illustrated, said it was Joel’s drinking problem that ultimately resulted in their relationship ending.
“If there wasn’t that issue … ,” she said. “I do think that we were probably really soulmates, it was an amazing time of my life.
“I had so much fun. We were such nomads, gypsies — just between his job and mine, we were seeing the world … It was wonderful, really wonderful.”
In the book, Brinkley apparently wrote that Joel would disappear for days while in the middle of a drinking binge, on one occasion going missing for two days after leaving Alex’s fifth birthday party.
Brinkley said that this caused her to develop a “panic I couldn’t shake”, fearing that he’d got into a car accident.
The tipping point, she said, was when Joel drunkenly accused his band – who he was hosting at their east Hamptons home for a rehearsal – of eating his pasta, when in fact he had eaten it himself.
“He was acting delusional in a way I’d never seen before,” Brinkley said, confirming that she asked Joel for a divorce the next day.
“To be clear, I never wanted to end things with Billy,” she said. “I read every self-help book I could find … we went to see a string of psychiatrists, psychologists and other medical doctors.”
She continued: “The drinking was bigger than the both of us. Booze was the other woman and it was beginning to seem that he preferred to be with her rather than me.”
Joel is now married to his fourth wife, Alexis Roderick, with whom he shares his two daughters Della Rose and Remy Anne.
