Ozzy Osbourne has been forced to cancel a set of show dates on his current tour as he recovers from pneumonia.

The news was first revealed in a tweet posted on Tuesday morning to the 70-year-old musician’s official Twitter account, which states that performances originally planned to take place in Australia, New Zealand and Japan have been called off.

Ozzy has announced the cancelation of shows in Australia, New Zealand & Japan. “Ozzy recently developed pneumonia & has spent some time in hospital. He is through the worst part,” says @SharonOsbourne. “His doctors have advised that he stay at home to recuperate for full 6 weeks”