Wiktionary
n. (archaic form of duet English) (qualifier musical performance by two people English)
Wikipedia
"Duett" is a power ballad in Norwegian, sung by Elisabeth Andreassen and Jan Werner Danielsen as a duet in the Norwegian Melodi Grand Prix 1994. The song won the Grand Prix, thus earning the right to represent Norway at the Eurovision Song Contest 1994.
The song deals with the power of song itself, with both performers describing the feelings they get from hearing the other's voice. They sing that it makes them feel free and united in spirit.
The song was performed seventeenth on the night, following Lithuania's Ovidijus Vyšniauskas with " Lopšinė mylimai" and preceding Bosnia and Herzegovina's Alma & Dejan with " Ostani kraj mene". At the close of voting, it had received 76 points, placing 6th in a field of 25.
It was succeeded as Norwegian representative at the 1995 contest by Secret Garden with " Nocturne".
"Duett" was also made in an English language version, where it's called "Duet". The single record featured the Norwegian-language version and the English-language version. It peaked at #3 at the Norwegian singles chart.