Norway was represented by Jahn Teigen, with the song '"Mil etter mil", at the 1978 Eurovision Song Contest, which took place on 22 April in Paris. "Mil etter mil" was chosen as the Norwegian entry at the Melodi Grand Prix on 18 March.

"Mil etter mil" is famous both for Teigen's notoriously bizarre stage performance in Paris, and for being the first song ever to score nul-points under the 12 points voting system. (It was said that one of the reasons for the introduction of the current system in 1975 had been that the European Broadcasting Union had considered it unlikely in the extreme that any song would finish the evening with a zero with national juries now able to vote for ten songs, rather than the three or five which had been the case with previous ranking systems used in the 1960s and which had led to so many going home empty-handed.)

Far from being bitter about, or humiliated by, his Eurovision disaster, Teigen would subsequently use his notoriety very cleverly to become one of the most successful artists on the Norwegian musical scene, and made two further appearances at Eurovision in 1982 and 1983.

The MGP was held at the studios of broadcaster NRK in Oslo, hosted by Egil Teige. Eight songs took part in the final, with the winner chosen by a 9-member "expert" jury, which included Ellen Nikolaysen, who represented Norway in 1973 (as part of the Bendik Singers) and 1975 and Odd Børre, who represented Norway in 1968. Oddly, the actual rankings of the jury members were used to calculate the result so the song with the lowest aggregate score was the winner.

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