Here are the videos that hit it big on YouTube in 2016 - plus, find out what makes a video go viral!
YouTube is still the best place to find the biggest trending videos. Recently the site released their list of top trending videos in 2016. It includes everything from a Nike ad to a father and son team that take a look inside things.
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I talked to YouTube Trends Expert Nina Tyler about the stories behind these vidoes and asked her what makes a video go viral.