United Kingdom, Feb. 18 -- Ozzy Osbourne has said he will perform at Black Sabbath's final reunion concert in July but on his own terms.

The 76-year-old rocker is plagued by health issues including Parkinson's and his band's farewell concert, titled 'Back to the Beginning', is set to take place on 5 July at Villa Park in Birmingham, marking the end of Black Sabbath's career, more than 50 years after the band formed in Ozzy's home city.

Ozzy said on his SiriusXM show 'Ozzy Speaks': "I'm not planning on doing a set with Black Sabbath but I am doing little bits and pieces with them.

"I am doing what I can, where I feel comfortable."

Ozzy added about remains determined to take part in the show: "I am trying to get back on my feet.

"When ...