Yugoslavia was represented at the Eurovision Song Contest 1966 with the song "", composed by Mojmir Sepe, with lyrics by Elza Budau, and performed by Berta Ambroà ¾. The Yugoslav participating broadcaster, (JRT), selected its entry through . This was the first-ever entry performed in Slovene in the Eurovision Song Contest.
The Yugoslav national final to select their entry, was held on 23 January at the Dom Sindikata in Belgrade. The host was . There were 14 songs in the final, from the six subnational public broadcasters; RTV Ljubljana, RTV Zagreb, RTV Belgrade, RTV Sarajevo, RTV Skopje and RTV Titograd. The winner was chosen by the votes of an eight-member jury of experts, one juror for each of the six republics and the two autonomous provinces. The winning entry was "" performed by Slovene singer Berta Ambroà ¾, composed by Mojmir Sepe and written by Elza Budau. The composer was awarded 250 million dinars. Vice Vukov had represented and .
The contest was broadcast on , , and .
Berta Ambroà ¾ performed 5th on the night of the Contest following Luxembourg and preceding Norway. At the close of the voting the song had received 9 points, coming 7th in the field of 18 competing countries.