Since its inception in 2005, YouTube has become one of the biggest platforms for new-age Internet celebrities and one-hit wonders alike. Some 250 advertisers earlier this year also said they would boycott YouTube because of extremist videos that promoted hate and violence. That was no different in 2017: YouTube's top 10 trending videos for the year have garnered more than 633 million views collectively, up by 83 million compared to last year's list.
The masked performer was a contestant on Thailand's aptly named singing competition show "The Mask Singer".
The video has been uploaded to the channel YouTube Spotlight with the hashtag, #YouTubeRewind.
- Seven minutes and 16 seconds of incredible table tennis trick shots.
- This 12-year-old singing ventriloquist's incredible performance on "America's Got Talent". Farmer went on to be crowned champion of the season when it finished in September.
Not surprising, however, is that the list is dominated by Irish music - claiming the top four spots.
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As well as a musical tribute to the Crumlin fighter, there were also appearances from artists like Ed Sheeran, Christy Dignam and Finbar Furey, and Harry Styles, the latter having released his debut album earlier in 2017.
- A hilarious, bad lip reading of Donald Trump's inauguration. It ranked as the most-viewed music video in more than 50 countries.
Luis Fonsi, left, and Daddy Yankee delivered YouTube's most-watched video ever, "Despacito".
- This animated short film about a closeted boy who fears being outed by his own heart will melt your heart. It was produced by Beth David and Esteban Bravo at the Ringling College of Art and Design. That is, until a toddler jovially entered the room and began tugging at his arm.
Wojcicki said YouTube was taking a "new approach to advertising", with more manual curation, stricter criteria for videos eligible to show ads, and a greater number of ad reviewers.