Ozzy Osbourne's absence from the Aug. 22 MusiCares premiere screening of his son Jack's documentary 'God Bless Ozzy Osbourne,' as well as comments from Jack and his sister Kelly at the event, have further fueled rumors that their father is indeed currently working with a reunited Black Sabbath on a new record.

"My dad is… I don't know if I'm allowed to tell you," Kelly told Artisan News. "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." We get it it; it's exciting. Jack was much more pragmatic, though, declaring "I can neither confirm nor deny who he is with or where he is."

By now, you're probably well aware of the big to-do last week, which flared up after Sabbath guitarist Tony Iommi was quoted as saying that he, Ozzy, bassist Geezer Butler and drummer Bill Ward were working on new material and planning a tour. Just when we thought the gods of rock 'n' roll were smiling down on us and granting us this long-desired reunion, the rumors were quickly dismissed as speculation by Iommi.

However, his statement stopped short of an actual denial, and his manager also didn't deny the band had been talking about working together. So, fan chatter continued to swell over the band's "Are they or aren't they?" status, and that's likely to intensify as a result of these new developments.

Is this possible this Black Sabbath reunion becoming the worst kept secret in rock? Seems like it.