The 65-year-old musician, who is a part of rock band Black Sabbath, said he had been dealing with queries about his retirement ever since turning 60, reported Contactmusic.
"The word retirement started coming into the interviews, but as long as I have an audience, as long as I can physically do it and enjoy doing it and they want to see me, what's the point in quitting?," Osbourne said.
Black Sabbath have been nominated for three Grammy Awards after their album '13', topped the charts in 30 countries.