This is not a mistake. It is based on a joke in the movie "These go to eleven...." http://www.youtube.com/watch?v=4xgx4k83zzc http://www.youtube.com/watch?v=4xg

This is not a mistake. It is based on a joke in the movie "These go to eleven...." http://www.youtube.com/watch?v=4xgx4k83zzc http://www.youtube.com/watch?v=4xgx4k83zzc