NPR Special Correspondent Susan Stamberg's audio postcard from the summer solstice in Paris included a mesmerizing singalong of the song "La Javanaise." The piece was identified as a Charles Aznavour song, but Francophile listeners correctly identified it instead as a tune by Serge Gainsbourg. We had fun doing some more research on YouTube, and found this terrific old video of Monsieur Gainsbourg performing the song.