Richard Rodgers and Lorenz Hart were contracted to Metro-Goldwyn-Mayer in May 1933. They were soon commissioned to write the songs for Hollywood Party, a film that was to star many of the studio's top artists. Richard Rodgers later recalled "One of our ideas was to include a scene in which Jean Harlow is shown as an innocent young girl saying - or rather singing - her prayers. How the sequence fitted into the movie I haven't the foggiest notion, but the purpose was to express Harlow's overwhelming ambition to become a movie star ('Oh Lord, if you're not busy up there,/I ask for help with a prayer/So please don't give me the air...')." The song was not even recorded and MGM Song #225 "Prayer ((Oh Lord, make me a movie star)" dated June 14, 1933, was registered for copyright as an unpublished work on July 10, 1933.
Lorenz Hart wrote new lyrics for the tune to create a title song for the 1934 film Manhattan Melodrama: "Act One:/You gulp your coffee and run;/Into the subway you crowd./Don’t breathe, it isn’t allowed". The song, which was also titled It's Just That Kind Of Play, was cut from the film before release, and registered for copyright as an unpublished work on March 30, 1934. The studio then asked for a nightclub number for the film. Rodgers still liked the melody so Hart wrote a third lyric: The Bad In Every Man, (Oh, Lord …/I could be good to a lover,/But then I always discover/The bad in ev’ry man), which was sung by Shirley Ross made up in blackface. The song, which was also released as sheet music, was not a hit.
After the film was released by MGM, Jack Robbins — the head of the studio's publishing company—decided that the tune was suited to commercial release but needed more romantic lyrics and a punchier title. Hart was initially reluctant to write yet another lyric but he was persuaded. The result was "Blue moon/you saw me standing alone/without a dream in my heart/without a love of my own".
Robbins licensed the song to Hollywood Hotel, a radio program that used it as the theme. On January 15, 1935, Connee Boswell recorded it for Columbia Records. It subsequently was featured in at least seven more MGM films including the Marx Brothers' At the Circus and Viva Las Vegas.
