This is composer Eric Whitacre's virtual choir he arranged from 185 amateur musicians' submitted clips. He acts as the virtual conductor in this YouTube video that represents 12 countries.
The result is very touching. Commenters have described the video as "amazing", "wonderful", and "brilliant". It's YouTube art, really.
And it serves as your daily reminder that you are not using the Internet to do anything cool. Alright, I'm going to go back to looking at pictures of babies dressed as evil dictators. You resume playing Bloons Super Monkey. We'll meet back here in an hour to make fun of Justin Bieber.