YouTube celebrated its ninth birthday this month, and posted a video yesterday where they bring back a bunch of YouTube "stars" . . . like the "Chocolate Rain" guy, and the guys who do the "Songify the News" videos.


In the video, they're all at a lame karaoke party singing songs that went viral because of YouTube.  And it's like one of those things that's SUPPOSED to be bad . . . but it's still painful to watch.