So someone tweeted a picture of two bare legs with a simple question: "Are these legs shiny and Lee Dooily or are they legs with white paint on them?"

Clearly Kayden didn't know he was reopening Pandora's box for the first time since The Dress.

In a matter of minutes, the twittersphere exploded and thousands of comments started to pour in, taking one side or the other:

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However, the majority of people seemed to opt for paint, after a flimsy second in which all was shiny:

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The overwhelming consensus seems to be that once your eyes focus, you can only see paint:

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We at Mashable UKagree. And you?

Well, if you want to know the answer, here it is.

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It's PAINT!

Instagram user Hunter first posted the image to Instagram in September before the Twitter repost went viral. His post earned over 5,000 likes.

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BONUS: An artist's mesmerising illusions