My high score is 1:21

How long can you watch this video for?  It will likely make you hate all people and all music and most likely cause you to break the sound output device on your computer; you've been warned.  I took off my headphones and tabbed away from it at 1:21, and was shocked two minutes later when I put my headphones back on and it was still going.  The takeaway lesson here is that there is no parody video so terrible that someone can't watch it and think "Yep, that one's ready to go on the Internet".