National One Hit Wonder Day

Spending most of my time in a non pop genre, it was strange combing through one hit wonder lists and seeing some of the artists mentions. System of a Down, really? I know more than one song by them. The same goes for Stone Sour, Fuel, and other artists as well. Not surprisingly, there was no death metal to be found. So, I took my cue from Wikipedia and tried to find my favorite one hit wonder that
1. Only had one Top 40 hit
2. Did not have other songs chart in genre specific charts
3. Were/are not successful and influential within their genre, ie, have a cult following.
4. Were not an American act with success overseas
5. Were not a non American act with success overseas
6. Were not a supergroup.
It was much more difficult than expected, and the best I came up with is....

Drum roll please....

"Der Kommissar" by After the Fire! The 80's had the best one hit wonders. 

What's your favorite?