One of the great composers of the American popular song, Hoagy Carmichael differed from most of the others (with the obvious exception of Duke Ellington) in that he was also a fine performer. Such Carmichael songs as "Stardust," "Georgia on My Mind," "Up the Lazy River," "Rockin' Chair," "The Nearness of You," "Heart and Soul," "In the Cool, Cool, Cool of the Evening," "Skylark," and "New Orleans" have long been standards, each flexible enough to receive definitive treatment numerous times.