Okay, go ahead and tell me I have a lot of time on my hands, but I did some research on the very first YouTube video ("Me at the zoo" by jawed), the first YouTube comment (a comment on the "Good Times!!!" video by zubazpants, with the commenter being Kazze aka Marco Casse), but you'll be surprised how ridiculous the most watched video is on YouTube with over 12 billion views...
View: https://www.youtube.com/watch?v=XqZsoesa55w
View: https://www.youtube.com/watch?v=XqZsoesa55w