Piano Man' hitmaker Billy Joel was recently diagnosed with a brain disorder called NPH or Normal Pressure Hydrocephalus, which led him to cancel his upcoming concerts. But what is NPH? Read on and find out.

The “Piano Man” singer has been diagnosed with normal pressure hydrocephalus, which can cause mobility and cognitive issues.

American singer, song-writer and piano man, Billy Joel has canceled all his upcoming concerts across England and North America after being diagnosed with a rare brain disorder.