Most of us have been told we have a doppelgänger - someone who looks just like us.
With 7.4 billion people on the planet, there's a theory that we have seven "twins" or lookalikes out there in the world.
The creators of Twin Strangers believe this is true.
Image Credit: Twin StrangersThe website and app, which are both operated out of Dublin, use facial recognition software to find your doppelgänger.
You just upload a photo and fill in a few details.
The site has been around since 2015 but it already has 4.3 million people in its database, with about 15,000 users joining every week.
The first meetup video, which involved Irish woman Niamh Geaney meeting her "twin", has almost 9 million views on YouTube.
Would you download an app to find your lookalike?!
