A guy named Greg Keating just posted a video online, claiming to be Conan O'Brien's LOVE CHILD.  It's supposed to be a joke, but he looks so much like Conan that it's hard to believe they're NOT related.  He says his mother conceived him in 1993, while she was working in Rockefeller Center, right above Conan's studio.  He says he wants to meet Conan so he can get his college costs paid for.

Check out the video below: