Black Sabbath have pulled out of their ''farewell'' show.

The 'Paranoid' rockers were due to perform at the Tokyo leg of Ozzfest on November 22 but frontman Ozzy Osbourne will now perform a solo set at the festival instead.

No explanation has been given for the change, but a statement from the band said: ''Despite previous reports, Black Sabbath will not appear on this year's Ozzfest Japan, the show will instead feature the festival's namesake, Ozzy Osbourne (and friends).''

Previous Ozzy Osbourne and Friends shows have seen the rocker perform with Black Sabbath bandmate Geezer Butler and former bandmate Zakk Wylde amongst others, though it is unclear who will join him on stage at the show.

Ozzy's wife Sharon, who also manages the group, previously announced the Japanese gig would be a ''farewell'' show.

She said in a video message: ''Ozzfest will be back in Japan on November 21st and 22nd. And this will be Black Sabbath's farewell.''

However, with Ozzy having previously announced Black Sabbath's intentions to record a new album and tour it this year, it is unclear whether the 'Talk' presenter simply meant it would be their final show in the country.