Hong Kong, Feb. 19 -- Don't believe us? Just watch. From the inescapable "Baby Shark Dance" (do-do, do-do-do-do) and CoComelon Nursery Rhymes, to Luis Fonsi, Bruno Mars and Ed Sheeran, these are the most-viewed YouTube videos of all time.

Can you believe that YouTube has only been a part of our lives since 2005? The internet was a very different place back then. Videos were massive, slow-to-load files on site backends and peer-to-peer file sharing networks like LimeWire and Kazaa. Making video quicker and more accessible was definitely YouTube's speciality, and in return, it's now the second most-visited site in the world, after parent company, Google, of course.

Like Instagram's most-followed users, celebrities have been made (and unma...