Jackson's manager has said such speculation is all nonsense.
"I'm sure those kids are Michael's," he said. " Michael's told me they're his. Debbie Rowe has told me they're his."
While various men are eyed as being the biological father of Jackson's three children, questions remain about whether Jackson fathered a fourth child, Omer Bhatti, now 25.
Bhatti, an aspiring rapper from Norway who lived with Jackson for years at Neverland Ranch, has denied that Jackson was his biological father. But Joe Jackson told TV One last month that he believed Bhatti was, in fact, a Jackson.