Half the inductees in the performer category were nominated for the first time this year. The ceremony will stream live on Disney+ in October.
The singer sustained a spinal injury four years ago that he said he is still recovering from. He was also diagnosed with Parkinson's disease in 2020.
Sharon Osbourne, who revealed the diagnosis, said she is taking off time from work to care for her 73-year-old husband, a rock music legend. "I am very worried about Ozzy right now," she said.