The song was written by the Greek composers Alec R. Costandinos and Stélios Vlavianós.
[1] A year after the release of Demis Roussos' original, the song was covered by Zhanna Bichevskaya.
Her version, with lyrics by Andrey Bogoslovsky, was titled "Risuyut Malchiki Voynu" ("Рисуют мальчики войну", "Boys Draw War").
The Russian rock band Agatha Christie also performed "First Love" at their concerts.
[1] Roussos recorded a German version of this song (titled "Mein Leben ist ein Souvenir") on his 1976 German-language album Die Nacht und der Wein.