Trivia

During the first song, the song from Finland, "Tom Tom Tom", performed by Marion Rung, there was a failure in the Eurovision Network that made the transmission sent to all the participating countries suffer from heavy interference for around 9 seconds in which the song couldn't be seen or heard, and consequently recorded, in any country, including the host country. As the interference happened during the second bridge of the song, what most TV stations decided to do with their recordings was to crop the whole bridge altogether to make the cut as subtle as possible when playing the whole song. This means that more than around 30 seconds of the song are missing from most copies of the show. The crop is so subtle in most cases, though, that not much people know about this fact.

First Eurovision appearance by Israel

Even though it did not win, the song from Spain, "Eres Tú" performed by Mocedades became the most commercially successful of all competing songs that year. One year later in 1974 they would sell a million copies in the USA in its original Spanish version despite being recorded an English version titled "Touch the Wind". It became the first single to enter the Billboard chart sung completely in Spanish, reaching up to top 9. Mocedades did not get a single penny out of these USA sales, though, as the record company that distributed the song in America closed on bankruptcy before they could get payed.

As of 2019, the song "Eres Tú" by Mocedades remains being the highest scored song from Spain in Eurovision history with 125 points, even after the introduction of the semi finals in 2004 and the change in the scoring system in 2015 that dramatically increased the amount of points to be allocated to the songs. In fact, only six songs out of the 59 songs that have represented Spain from 1961 to 2019 have received more than 100 points.

In this year, the rule of each country singing in one or many of their official languages was lifted and countries were allowed to sing in the language of their choice. This year, the country that won was singing in their official language, but the following years only songs in English were winners (even though in 1976 the winner was the United Kingdom singing in their official language), so the EBU reinstated the rule in 1977 and kept it in place up to 1999.