Sony Music isn't buying the claim of Katherine Jackson and two of Michael Jackson's kids ... that some of the tracks on a soon-to-be-released MJ album are fake -- because one of the tracks in question is about to be released on michaeljackson.com on Monday.
The song -- "Breaking News" -- was recorded in 2007, at the New Jersey home of Eddie Cascio. Jackson and his kids lived in the house for 4 months while Michael was recording. We're told Prince, Paris and Katherine now believe the Cascio tracks are fake -- not Michael's voice.
But Sony has done a bunch of voice authentications, and the record company is convinced it's the real deal. So a teaser will be released tomorrow, and the full song will be on the MJ website for one week, beginning Monday.
We're told 3 tracks recorded at the Cascio house will be included on the full album, which will be released on December 14.