This picture has gone viral, but it's not what you think it is

- Published
What's the first thing that comes to mind when you look at this picture?
Perhaps you think that, on first glance, it's a photo of a huge crowd of people at a festival or outdoor concert, with bright glaring lights engulfing a funkily designed stage. Glastonbury, perhaps?
That's what one Twitter user thought when he initially saw the picture.
And if you think that's what you're looking at too, we're here to tell you your eyes are deceiving you.
This is your last chance to look at the picture again - really look at it - before we tell you what you're really seeing.
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It seems so obvious now, doesn't it? Don't worry, you're not the only one whose eyes may have misled them. People on Twitter loved it - to the tune of 48,000+ retweets - and were quick to embrace the joke.
This is just the latest viral image to wreck people's heads with its trickery. Last year, internet users went into meltdown mode trying to figure out how these toy train track pieces could be different sizes when laid out beside each other, but the same size when one is placed on top of the other.
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This was due to something called the Jastrow Illusion, and according to BBC News:
"It involves two arc shapes of equal size, where the longer side of one arc is brought into contrast with the shorter side of the other. When the images are arranged as they are in [Marc's] video, the top left corner of the lower piece is actually shifted over to the right, to align with the bottom left corner of the piece on top."
Does that make sense to you?
How about the brick wall optical illusion that went viral last year?
The image - which started life when a guy named Arron Bevin posted it on Facebook - looked like it featured a small stone wedged in a gap in a brick wall.
But look closer. Seen it yet?
It's actually a cigar sticking out from between the bricks - focus on the grey part because that's the ash end of the cigar. It truly can't be unseen!
Then there was the case of the 'oily legs'...

But the truth behind the image was far simpler - and you'll kick yourself once you see it.
Finally, there was this image of a young girl who appeared to be totally underwater. Or was she jumping in?
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The internet never seemed to come to an agreement, external on this one. On the one hand, she appears to be blowing air bubbles. But on the other hand, her hair still seems to be dry...
You'll just have to trust your eyes and make up your own mind...
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