It was written for the romance film, Three Coins in the Fountain and refers to the act of throwing a coin into the Trevi Fountain in Rome while making a wish. Each of the film's three stars performs this act.
Cahn and Styne were asked to write the song to fit the movie but were unable to either see the film or read the script. They completed the song in an hour and had produced a demonstration record with Frank Sinatra by the following day.
Three coins in the fountain, Each one seeking happiness. Thrown by three hopeful lovers, Which one will the fountain bless?
Three hearts in the fountain, Each heart longing for its home. There they lie in the fountain Somewhere in the heart of Rome.
Which one will the fountain bless? Which one will the fountain bless?
Three coins in the fountain, Through the ripples how they shine. Just one wish will be granted, One heart will wear a valentine. Make it mine! Make it mine! Make it mine!