Stop - Mens Legen Er Go'

"Stop - Mens Legen Er Go'" (English translation: "Stop While The Going Is Good") was the Danish entry in the Eurovision Song Contest 1966, performed in Danish by Ulla Pia.

The song was performed second on the night (following Germany's Margot Eskens with "Die Zeiger Der Uhr" and preceding Belgium's Tonia with "Un Peu De Poivre, Un Peu De Sel"). At the close of voting, it had received 4 points, placing 14th in a field of 18.

The song deals with the need to draw a clear boundary in romantic relationships, with Pia singing about what happens when "a girl's going home from her first dance" with a suitor who may have slightly impure intentions. She explains that using the phrase "Stop while the going is good" needn't mean the end of an enjoyable evening, as the lovers can enjoy "the tranquility of the starry sky".

Denmark did not enter the Contest from 1967-1977. Hence, the song was succeeded as Danish representative at the 1978 Contest by Mabel with "Boom Boom".