Rebecca Black

Rebecca Black is a teenage singer best known for her infamous music video "Friday"

In the Parodies
There have been countless Hitler Parodies centered around Hitler ranting about her song, usually immediately after hearing it. It was taken to the extreme in Hitler Tries to Kill Rebecca Black, which centered around Hitler devising various schemes to kill her, only for them to backfire in one way or another.

The first U-Boat Parody video had Captain Heinrich Lehmann-Willenbrock being informed about the events of a Hitler Parody in which Hitler ranted about Rebecca Black. He decided to listen to the song out of curiousity, wondering what Hitler had against it, only to quickly order it to be turned off after he heard the song.