Jermaine Jackson -- Posthumous Michael Jackson Music Is Just Wrong ... WITHOUT ME

Jermaine Jackson does not like the idea of new Michael Jackson music being released, but says it would have been cool if the Jackson 5 had worked on it.

JJ went from guarded to bitter when we asked him about the new MJ music Saturday afternoon in Calabasas. He says he's only heard one of the songs so far ... and thought it was good.

But overall, he's against the idea of MJ's music being released without MJ around ... noting the estate passed over the Jackson 5 to work with producers like Timbaland.