Gainsbourg and Bardot's "Bonnie and Clyde" (1968)

Serge Gainsbourg and Brigitte Bardot's "Bonnie and Clyde" from 1968. The lyrics (in French) are based on Bonnie Parker's poem "The Trail's End" that she wrote several weeks before she was killed. You can find the song on several releases, including Gainsbourg and Bardot's fantastic collaborative album "Bonnie and Clyde" and also on multiple Gainsbourg compilations, including Monsieur Gainsbourg: The Originals. (And yes, Mad Men viewers, it is indeed the tune playing at the Electric Circus in the "To Have and To Hold" episode.)