Here's what DPA, Germany's national news wire reported this past September
A terrorist attack occurred in the city of Bluewater, California. The suicide bombers were German rappers, the "Berlin Boys".
A half hour later DPA issued a correction: there had been no bombing. The "Berlin Boys" are not a rap group. The city of Bluewater does not exist.
It was all an elaborate publicity stunt to promote the satirical German film Short Cut to Hollywood. Filmmaker Jan Henrik Stahlberg and his team fooled their entire nation by creating fake websites and videos:
Here's the fake city of Bluewater (link).
Here's the fake local Bluewater news station, KVPK (link).
And here are the "Berlin Boys" with their club hit "Hass":
Wired has a detailed report (link).