A long-running battle, apparently. It began with the Beatles' mockery of Hitler and Hitlermania.

The Beatles, "We Build TANKS!"

Then a German adolescent with a cracking voice made a bad Beatles cover version in spite.

A German Kid, "Let It Be (Untuned)"

Then the Beatles played poorly at a concert in Germany:

Then some more German kids did a kind-of scary German-language cover of "Help!"

Some More German Kids, "Halt!"

Then the Beatles totally ridiculed the German language with "Geh Raus":

Then Hitler reveals that he is a major Beatles fan, and the feud was ended.