PIC: Can You Spot Anything Wrong With This Picture Of 6 Girls?

What we have here, ladies and gentlemen, is the very definition of a head-scratcher.

Posted on Reddit, this seemingly normal picture of a group of friends sitting on a couch has become a viral mystery that's wrecking heads around the world.

Something's not quite right with this scene, have a look to find the problem...

Can you spot it? Better yet, can you explain it? If so, let us know in the comments.

READ NEXT: PIC: Can You Spot What's Wrong With These Lockers?