Prince Jackson says that Michael Jackson may not be his biological father. In response to a Twitter accusation that "everyone knows you are a Rowe-Klein NOT a Jackson!"

Prince wrote "The blood of the covenant is thicker than the water of the womb . . . I was raised by my dad with my brother and sister."

Some have speculated that it is Prince's way of admitting that his dad is not Jacko.

Previous rumors have circulated that Dr. Arnie Klein fathered Michael's kids with Debbie Rowe.

Klein added fuel to the speculation by posting a driver's license photo of himself next to a picture of Prince on Twitter and writing "Hmmmm," apparently implying a likeness between the two.

Prince, and his younger siblings, Paris and Blanket - will appear in an upcoming reality show called The Jacksons: Next Generation.