Ozzy Osbourne has given up making plans for a Black Sabbath 40th anniversary tour - because his bandmates cannot make their minds up.

The rocker first heard there was a big tour planned and the next thing he knew, it had been called off.

And now Osbourne is tired of all the confusion.

He tells the Sydney Morning Herald newspaper, "If it happens, it happens, if it don’t, it don’t… You get a phone call: ‘It’s off!’ Then it’s back on again."

"You know what? I don’t want to say yes, and I don’t want to say no, because I’ve put my foot in my mouth so many times. If it’s meant to happen, it will happen."

Osbourne’s former Sabbath bandmates are currently touring with Ronnie James Dio as Heaven & Hell.