No sarcasm here: Most popular YouTube videos are awesome. If you can't appreciate an adorable baby or puppy doing something hilarious, then you have forgotten how to smile. But occasionally, something else slips through the cracks.

Because humans are by nature both depraved and deeply confused, this random video of a guy doing an arm tattoo is one of the most popular pieces of entertainment ever created by the human race. It has 48,437,278 views, and the reason for it is both hilarious and terrifying.

The video itself is just this:

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A guy doing a tattoo. There is no shocking twist ending, no hot girl or celebrity shows up. This is a mystery, because everything else on YouTube's most popular list is there for a reason -- you may have no interest in Justin Bieber, but we have nothing against the people who do. But to put this random video's number in perspective, more people watched it than bought tickets to the final Harry Potter movie. It also beats Top Gun, Transformers and Terminator 2. It has more views than most Britney Spears videos. So, why? Well, if we look at the comment section, we see the same thing over and over: