Billy Joel has been banned from performing and is "not allowed to drive" anymore.
The 77-year-old musician has revealed he is selling off his beloved collection of motorbikes because his doctors have warned him against getting back on the road since he was diagnosed with normal pressure hydrocephalus (NPH), a neurological condition that occurs primarily in older adults, and they have also ordered him to stay away from the stage because the "stress of the show" could be too much for him.