Conan O'Brien look alike Greg Keating said he is the illegitimate son of Conan O' Brien in a hilarious viral video in which he asks the talk show host to go fishing with him.

The Conan O'Brien look alike Greg Keating posted the video to YouTube, revealing the fact that his mother worked three floors above the Late Night studios when he was conceived and she was fired from her job after getting pregnant.

Greg Keating goes on to say he wants to "dominate late night television" with Conan as father and son while demonstrating his best impression of Conan's "string-dance".

"What I'm trying to say Conan is that we need each other," he says. "You need the warm embrace of your son and I need an easier financial path through college. So I love you, dad."

Conan O'Briend then responded on twitter by tweeting,

"A kid in New Jersey is falsely claiming to be my illegitimate son. For the record, I have three children: Neve, Beckett, and @RonanFarrow."

Ronan Farrow took Conan's joke in good humor, and retweeted it.

According to his interview with Yahoo!, Conan O'Brien look alike Greg Keating says he finally made the video after getting comments nearly every time he left the house, with many people saying he should film something to send to the show.

"You start to think and you start to wonder, is it more than I just look like him? Is there something else to this? Is there substance to this connection?"

Greg Keating says the comparisons started in the third-grade, before he even knew who the TV host was.

"A basketball ref called me Conan in a recreational basketball game, and I had no idea what he was talking about" he said.

According to the interview, Greg Keating says his family has been getting a kick out of the video and all the attention it garnered.

"People in my family are just eating it up," the Conan O'Brien look alike said. "They've been waiting for me to do something about it forever. I like to make people laugh."

It looks like Greg Keating is a Conan O'Brien look alike in more ways than one.

Greg Keating says he comes from a large Irish-Catholic family from Massachusetts just like Conan O'Brien.