Ella Fitzgerald, 1956. The first volume of her famous Songbook series. Established the Great American Songbook canon.
From Wikipedia
Ella Fitzgerald Sings the Cole Porter Song Book is a 1956 studio double album by American jazz singer Ella Fitzgerald, accompanied by a studio orchestra conducted and arranged by Buddy Bregman, focusing on the songs of Cole Porter. It is the first in a series of thematic LPs devoted to great American songwriters that Fitzgerald recorded from 1956 to 1964.