Ozzy Osbourne has retired from the stage.

The 74-year-old Black Sabbath singer announced on Wednesday that he is ending his tour due to a spinal condition and has canceled all remaining dates.

“This was one of the most difficult things I’ve ever had to convey to my devoted fans. You may be aware that I had a serious accident this month, four years ago, in which I fractured my spine,” Osbourne said in an Instagram post early Wednesday.

“My only goal all this time has been to come back on stage,” he said.

“My vocal range is fantastic. After three procedures, stem cell therapy, countless hours of physical therapy, and, most recently, the groundbreaking Cybernetics (HAL) Treatment, my body is still physically frail.”

Osbourne went on to say that he had “realized” that he was “not physically capable” of finishing his planned UK and European tour dates due to his inability to handle the necessary travel.

“Never would I have dreamed that my touring days would have ended this way,” Osbourne continued on Instagram.

“My team is currently brainstorming locations where I can work without traveling from city to city or country to country,” the author explained.

“I want to express my gratitude to my family, my band, my crew, my longstanding friends, @JudasPriest, and, of course, my fans for providing me the life I had never even dared to imagine. I love you all.”

In his last post, Osbourne informed his followers that show ticket refunds are available.

Osbourne had surgery in 2019 after a late toilet trip fall aggravated his 16-year-old ATV accident neck and back injuries.

Since then, he’s had two more procedures, the most recent in July. Following his fall, he was diagnosed with Parkinson’s disease and now walks with a cane.

Osbourne, who has been married to Sharon Osbourne for 40 years, was determined to tour again despite “nightmare” health setbacks.

“Because I’m supposed to be there. The biggest love affair I’ve ever had is with my audience,” he revealed.

“Even if I must be wheeled on and nailed to a board, I’m going back on stage. My legacy is simply that I lived.”