TMZ cites sources who claim Michael was not the biological father of his three kids.

      *There are a myriad of Internet reports – spearheaded by TMZ.com – that claim Michael Jackson was not the biological father of his three children, Prince Michael Jr., 12, Paris, 11 and Prince Michael II (Blanket), 7.      

       Sources tell TMZ that Jackson did not provide sperm donations for any of his children and that Debbie Rowe was merely a surrogate for Prince Michael Jr. and Paris.      

       According to Us magazine, Jackson’s dermatologist and Rowe’s former boss Arnold Klein is the biological father to both Prince and Paris.       

       "He is the dad," a Jackson insider told Us. "He and Debbie signed an agreement saying they would never reveal the truth."      

       As for Blanket, TMZ reports that the surrogate was never told that the baby was for Jackson.      

       Jackson's mother Katherine Jackson was granted temporary guardianship of Jackson's three children on Monday. A hearing on the matter is set for Aug. 3.