Denmark was represented at the Eurovision Song Contest 1979 with the song "Disco Tango", composed by Tommy Seebach, with lyrics by Keld Heick, and performed by Seebach himself. The Danish participating broadcaster, Danmarks Radio (DR), organised the Dansk Melodi Grand Prix 1979 in order to select its entry for the contest. This was the first of Seebach's three Eurovision appearances for Denmark. The 1979 DMGP is notable for the participation of two of Denmark's three Eurovision winners, Grethe Ingmann and the Olsen Brothers.

Before Eurovision

Dansk Melodi Grand Prix 1979

Danmarks Radio (DR) held the Dansk Melodi Grand Prix 1979 on 3 February at TV-Byen in Gladsaxe, hosted by Jørgen de Mylius. 17 songs took part with the winner being decided by votes from eight regional juries. The main voting resulted in a tie for first place between "Disco Tango" performed by Tommy Seebach and "Alt er skønt" performed by Grethe Ingmann and Bjarne Liller. The tie was resolved after a revote, which was won by "Disco Tango" performed by Tommy Seebach. Rasmus Lyberth performed in Greenlandic, and Annika Hoydal in Faroese.

At Eurovision

On the night of the final Seebach performed 3rd in the running order, following and preceding. Among the backing singers was Debbie Cameron, with whom Seebach would perform as a duo in. At the close of voting "Disco Tango" had received 76 points, placing Denmark 6th of the 19 entries. The Danish jury awarded its 12 points to.

Voting