"Mad Dogs and Englishmen" is a song written by Noël Coward and first performed in The Third Little Show at the Music Box Theatre, New York, on 1 June 1931, by Beatrice Lillie. The following year it was used in the revue Words and Music and also released in a "studio version". It then became a signature feature in Coward's cabaret act.
The song's title refers to its refrain, "Mad dogs and Englishmen go out in the midday sun." (The saying "Only mad dogs and Englishmen go out in the midday sun" is often asserted to have been coined by Rudyard Kipling but no precise source is ever cited.) The song begins with the first 10 notes of "Rule Britannia". This song is considered a patter song, because the lyrics are mostly spoken rather than sung. One of the memorable lines in the first chorus is "But Englishmen detest a siesta".
According to Sheridan Morley, Coward wrote the song while driving from Hanoi to Saigon "without pen, paper, or piano". Coward himself elucidated: "I wrestled in my mind with the complicated rhythms and rhymes of the song until finally it was complete, without even the aid of pencil and paper. I sang it triumphantly and unaccompanied to my travelling companion on the verandah of a small jungle guest house. Not only Jeffrey [Amherst], but the gecko lizards and the tree frogs gave every vocal indication of enthusiasm".[1]