"We all want you back in that white hot spotlight," wrote Brinkley, who shares daughter Alexa Ray with the singer.

Fox News senior medical analyst Dr. Marc Siegel breaks down the symptoms of Normal Pressure Hydrocephalus amid music legend Billy Joel's brain diagnosis and why it's under-diagnosed on 'Fox Report.'

“This condition has been exacerbated by recent concert performances, leading to problems with hearing, vision and balance,” said a statement posted to the singer’s social media accounts.