18 countries participated in the 1965 Eurovision Song Contest, a record at that time. It was the year that Ireland made its debut in the contest. Ireland would later go on to become the reigning Eurovision champion with 7 victories. The Swedish performer, Ingvar Wixell, performed his entry in English prompting a rule change the following year. Spain, Germany, Belgium and Finland all scored nul points.
1965 represents a milestone moment in the Eurovision Song Contest since it is the first time that a pop song won the contest. The winning entry for Luxembourg, Poupée de cire, poupée de son was written by French Serge Gainbourg and was performed by France Gall. The song went on to become an international hit and had a huge impact on the type of songs that would be entered into the Eurovision Song Contest over the following years.