Kelly and Jack Osbourne have hinted that their father Ozzy could be reforming with the original line-up of Black Sabbath.

In a recent interview with Artisan News Service, Kelly revealed that her father is working on ''something very excited'', whilst son Jack refused to deny that the Black Sabbath were planning to work together again.

''My dad is… I don't know if I'm allowed to tell you. But he's doing something that is very, very exciting. He's just finished a tour. But he's doing something very exciting. I'm not allowed to talk about it, though,'' Kelly said.

While, Jack added: I can neither confirm or deny who he is with or where he is.

As previously reported on Gigwise, Black Sabbath's Tony Iommi recently denied reports that Black Sabbath have reformed for a new tour and album.

The Birmingham Mail reported that the band; Ozzy Osbourne, Tony Iommi, Geezer Butler and Bill Ward had reunited and were 'looking forward to performing' again'.

Ozzy Osbourne - live photos