The music was composed by Richard Rodgers, with lyrics by Lorenz Hart.
"[1] It was introduced by Maurice Chevalier and Jeanette MacDonald in the Paramount film Love Me Tonight (1932).
It has since been recorded numerous times, with and without vocals, by many jazz and popular artists.
In Love Me Tonight, the song is used in a sequence in which it is first sung by Maurice Chevalier, a tailor, and then taken up by others (his customer, a cabby, a composer, a troop of soldiers, a band of gypsies) and is finally heard and sung by a princess, played by Jeanette MacDonald.
In 2004 this version finished at #73 in AFI's 100 Years...100 Songs survey of top tunes in American cinema.