Weird Things People Did on YouTube

so... since today is the last day of the decade I thought I'd do some...
ReFLEctInG oN ThE PAsT DeCadE
Enjoy :)
Disclaimer: I do not own any of these songs, toys, games, dances, or whatever I choose to put in here. Or anything else. What I do own is a very nice set of 10 fingers that I am using to type this.