There are some seriously wonderful videos on YouTube. I thought I would share a few of my favourites. You might not think they're funny at all, so sorry if that's the case (sometimes people post something they think is hilarious but I just think it's stupid, so I'm sure that'll happen.). And since I have shared by best ones, post a link to your favourite in the comments!
Newsies dance to Lady Gaga
Goofy Movie: After Today IRL
Llamas with Hats trilogy
Number 3: Beyonce Clown. Simple and classic. Not sure why there was a clown mask involved in the first place.
Number 2: Antoine Dodson. Pretty much everyone and their emu has seen this already, but it's still wonderful.
(also see Antoine Dodson remix)
Number 1: Total Eclipse of the Heart: Literal Video Version. Basically the best thing ever, imho. One time I was watching Glee with Katie Kyle and they started singing Total Eclipse of the Heart (non-literal version obv) and I almost cried laughing. "Emo kid is throwing slo-mo dove in my face. I guess that means that he just flipped me the bird".
(You have to go to the actual site to watch it. DO IT! IT'S WORTH IT!)