Dr. Arnie Klein Dr. Arnie Klein

Michael Jackson's Beverly Hills dermatologist, Dr. Arnie Klein, says he's not the biological father of Jackson's kids — well, as far as he knows.

Find out more about the reports regarding Jackson's children

"To the best of my knowledge, I am not the father of these children," Klein told Good Morning America's Diane Sawyer, who asked him point-blank if Us Weekly's report that he's the daddy is true. "I can't answer it in any other way. I don't want to feed any of this insanity that is going around."

Debbie Rowe — Jackson's ex-wife and mother to his two oldest children, Prince Michael, 12, and daughter, Paris, 11 — met Jackson while working for Klein.

Watch Paris' heartfelt words from Jackson's memorial

Click here to watch Klein's noncommital response during the interview.