Serge Gainsbourg: Je suis venu te dire que je m'en vais (1973)

This is Gainsbourg's playing with Verlaine's chanson d'automne, mixing Verlaine's words with his own.
On YouTube.
Lyrics

Rereading his bio on Wikipedia I realized I had forgotten how erratic he became due to his alcoholism but the songs are great. Here is the link to the bio in French.