Top trending YouTube videos of 2017

James Corden's Carpool Karaoke with Ed Sheeran was one of the most-viewed videos on YouTube in 2017.

We're wrapping up what's been an eventful year in the U.S. and around the world.

We're taking a look back at some of the lighter moments of 2017 that went viral.

We got a chance to talk live to YouTube trends expert Nina Tyler about the top trending YouTube videos of 2017.

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