United Kingdom, June 6 -- Barry Manilow's heart "broke" when he heard about Billy Joel's health crisis.

The veteran musician was forced to cancel all of his tour dates for the rest of the year after he was diagnosed with a rare brain condition called Normal Pressure Hydrocephalus (NPH), which is caused by a build-up of fluid in the brain, and now Manilow has admitted he feels terrible about seeing the Piano Man go through such a tough time.

He told Billboard: "Oh, it's so horrible, so horrible. It just broke my heart when I heard about Billy Joel. I'm such a fan of his work. I really hope he's able to get back to it."

Manilow went on to admit there aren't many of his contemporaries still performing. He said: "It's like: 'What? Am I the...