Lady Gaga's Super Bowl halftime show. BBC Dad. Every goof on Donald Trump's inauguration imaginable. It might be hard to believe these viral moments all happened in the same year -- this year -- but they did! We've got the video footage to prove it.
With the help of YouTube, we're counting down and revisiting the most viral videos of the year. The site created its top-10 list by considering the ways people interacted with its biggest videos -- including shares, watch time, likes, and comments -- before ranking them by views. Collectively, the heavy-hitter viral videos below amassed more than 630 million views, and people spent more than 40 million hours watching. In a year that was frequently dark, depressing, and outright baffling, it shouldn't be surprising that the stuff that resonated most was fun and inspiring (sometimes both).