Oh for a twin of your very own.
Well, there might just be one out there. Or a few.
There are, after all, 7 billion people in the world.
"They say there are seven people in the world who look exactly like you … we want to find OUR Twin Strangers."
This is the challenge Dubliners Harry English, Terence Manzanga and Niamh Geaney set themselves, with a deadline of 28 days.
The friends were inspired by British journalist, Sophie Robehmed, who set out on a world-search to find her doppleganger in 2011 and found her likeness living just hours away.
With two weeks of their challenge to go, 26-year-old Niamh found and met her unrelated twin, Karen Branigan last weekend.
The video of the pair meeting for the first time has gone viral, with more than 2.4 million hits since it was uploaded on Tuesday.
"I haven't stopped looking at you, because it's weird, it's really, really weird, " Geaney tells 29-year-old Karen upon meeting.
"You probably look closer [to me] than some of my sisters, it's so insane."
The pair, who only live one hour apart, filmed themselves doing their hair and makeup in the same way to see how close they could make their match.
"I thought I would be fine until I knew I was about 10 minutes away from meeting her," Geaney told ABC News. "Then I started to get ridiculously nervous wondering how I would react to meeting someone that looks like me. I would be looking at my own face!"
"For the entire duration of our encounter, I pretty much stared at her," said Geaney, a TV presenter. "I couldn't get over her face and some of the expressions she would pull.
"I would think to myself or aloud, 'Oh my God, that's my face'. I can't remember the number of times I said, 'This is so freaky'. It was truly amazing."
Since their meeting, Geaney and Branigan, who said they got on "very well", have been chatting over Facebook.
The others in the group, who started their search out of curiosity, have had less luck so far.
"I think I have two, maybe three at a push who resemble me. But they're definitely not as close a match as Karen to Niamh," Harry told the MailOnline.
"I'm trailing further behind," added Terence. "Must be a guy thing. They tend to be a bit too shy to participate. Not sure if being originally from Sub-Saharan Africa has anything to do with it!"
Whether they find them or not, they're sure to be out there ... somewhere.
"If you could check every face in the world, you would find someone similar enough to fool even you, at least some of the time," Rob Jenkins, cognitive psychologist at the University of Glasgow, said after Sophie Robehmed met her doppelganger. "The problem is the practical difficulty of inspecting enough faces."
Fairfax Media
