Welcome to WatchMojo, and today we’re counting down our picks for the most legendary videos ever uploaded to YouTube. YouTube Some of you youngins might not remember YouTube Rewind, but it was quite ...

SEOUL—“Baby Shark Dance,” the aggravatingly addictive children’s tune, is YouTube’s most-watched video ever. It has been played, on average, more than 4.7 million times a day since its 2016 upload.