This seemingly regular picture of four friends has left the Internet baffled, sparking a major debate, and some say there is something seriously wrong with the picture.

While many been cracking their heads over, only few have been able to spot it. The image was shared on Imgur by what047 with the title - "It took me forever to find what was wrong here..." The image left many stumped but once you see the problem, you will be baffled. But many are finding quite tough to spot this mind-numbing problem.

"I don't get it," says one Imgur user. "I wouldn't have even known there was something wrong if it wasn't for the title," says another. Another compared it to the Matrix. "This isnt The Matrix?" "No, it's another training program designed to teach you one thing: If you are not one of us, you are one of them," the user said.

Another baffled user commented: "Whhhhat kind of Photoshop wizardry is going on here....upvote for not messing with the best part."

This image, which was shared on June 2 has collected over 6 lakh views and counting. "There is nothing wrong with this picture at all. Nothing," says one commenter.

You still wondering what is wrong with the image. Look closely at the faces (of the men behind), yes, it is the same. "Took me way longer than it should, I thought it was the girls faces," says one commenter. "But which one is the original dude?" asks another.

What do you think is happening here? Comment and let us know what you think of it