Washington, Feb. 7 -- Singer and songwriter Ozzy Osbourne, who rose to fame during the 1970s as the lead singer of the band Black Sabbath, is excited about his upcoming farewell concert with his Black Sabbath bandmates, but he shared he won't be able to walk because of his Parkinson's disease.

He will join the original members of Black Sabbath -- Osbourne, Tony Iommi, Geezer Butler and Bill Ward -- for the first time in 20 years for one final show, titled The Back to the Beginning, on July 5 at Villa Park in Birmingham, England, according to The Hollywood Reporter.

His wife, Sharon Osbourne, shared that "he's very happy to be coming back and very emotional about this," according to The Hollywood Reporter.

"Parkinson's is a progressive ...