Billy Joel just delivered his most candid health update yet — and it comes with a surprising twist involving his beloved motorcycle collection. The 77-year-old "Piano Man" told The Hollywood Reporter this week that he is still barred from driving and has no idea when, or if, he'll be cleared to get back on stage.

"I have to take a series of tests before I know, but I can't drive right now," Joel said, confirming what multiple outlets are now reporting as a major setback more than a year after he first went public with his diagnosis.

Joel was diagnosed in 2025 with normal pressure hydrocephalus (NPH), a buildup of cerebrospinal fluid around the brain that can scramble balance, memory, vision and hearing. The revelation forced him to scrap a slate of previously scheduled tour dates. According to ABC News, Joel underwent brain surgery to have a shunt implanted to drain the excess fluid, a procedure he says actually helped: "My memory got better, my balance got a little better, my ability to function was better."

Concerts Compared to Concussions

Still, the road back to the stage remains murky. Joel said his own neurologist warned him that performing carries real physical risk given his condition.

"EVERY TIME YOU DO A SHOW, IT'S LIKE YOU'RE GETTING A CONCUSSION."

Despite the sobering diagnosis, Joel is keeping his trademark deadpan humor intact, downplaying the severity of his condition. "They call it a brain disorder, but it's not that serious," he said, adding that it mostly "affects your balance" and joking that it's hard to tell "what's age and what's a condition."

The most unexpected fallout from his diagnosis: Joel is parting with more than 70 motorcycles from his personal garage. The collection goes under the hammer at a Gooding Christie's auction set for Nov. 20-21 at New York's Javits Center, with bikes on public display beforehand. The headline lot is a 1978 Triumph T140 Bonneville, a gift from Madison Square Garden commemorating Joel's 150 sold-out shows there, expected to fetch $10,000 to $15,000.

Joel, ever blunt about why he's selling, said he simply can't ride the way he used to and isn't willing to tempt fate: he didn't want to "die like a bug on a windshield." Auction house founder David Gooding called Joel a "genuine enthusiast" with a true rider's eye, not just a collector chasing trophies.

Through it all, Joel is trying to reassure fans that the Piano Man isn't going anywhere just yet. "I just want people to know, don't worry about me," he said. "I'm not going anywhere. I'm here. I'm still here." Whether that means a return to the stage remains an open question — one more round of tests, Joel says, will tell.