Autumn Leaves is a 1945 French song “Les feuilles mortes” (literally “The Dead Leaves”) with music by Hungarian-French composer Joseph Kosma and lyrics by poet Jacques Prévert, the Hungarian title is “Hulló levelek” (Falling Leaves).
It quickly became a jazz standard, especially after the song was featured in the title sequence of The film Autumn Leaves (1956), sung by Nat King Cole (see above).
There are a host of artists performing it, but my favorites are below:
Chet Baker!
Stanley Jordan