The Foo Fighters

The Foo Fighters is a rock and roll group that started in 1995. However, as they played tonight in North Carolina a blurb came across the bottom of the screen that said, "Foo Fighters were fireballs that pilots saw over Germany. "However, Foo Fighters was actually the name of American pilots for UFOs that followed them throughout world war II. They also were there at Roswell. So, by calling themselves Foo Fighters it is a euphemism for the group actually being a group of  UFOs which is kind of an inside joke.