The song expresses Professor Henry Higgins's rage at the fact that his pupil Eliza Doolittle has chosen to walk out of his life, and his growing realization of how much he will miss her.
Dean Martin recorded the song for his 1960 album, This Time I'm Swingin'.
It was later covered by Herb Alpert & the Tijuana Brass, on their 1964 album South of the Border.
The song is sometimes rendered as "I've Grown Accustomed to His Face" when sung by a female singer, or as "I've Grown Accustomed to Your Face."
Connie Evingson