There’s always been suspicion concerning Michael Jackson being the biological father of his extremely light-skinned children. Now someone has, well, sort of stepped forward to contest at least one. Michael Jackson's famous dermatologist, Dr. Arnie Klein, has taken to social media to kind of take credit for siring MJ's son, Prince Jackson.

On his Facebook profile, the doc posted a not-so-clear photo of Prince juxtapose to an old photo of Klein when he was younger. The two, no doubt, show a resemblance. Under the photo, Klein wrote the caption, "hmmmmm.” The comment was unspoken shout out to folks who've said for years that it was Klein who provided the sperm that fathered Prince and Paris.

Debbie Rowe, Michael Jackson's ex-wife, gave birth to Prince in 1997. Daughter Paris came the following year. Michael’s third child, Blanket, was born to an anonymous surrogate in 2002. In an old interview Arnie had denied being the father, telling Diane Sawyer: "To the best of my knowledge, I am not the father of these children."

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(Photos from left:  Tasos Katopodis/Getty Images,Ethan Miller/Getty Images)