Someone to Watch Over Me is a ballad composed by George Gershwin with lyrics by Ira Gershwin, written in 1926 for the Broadway musical Oh, Kay!, a Prohibition-era comedy with a libretto by Guy Bolton and P.G. Wodehouse. Howard Dietz contributed the title while assisting Ira, who was hospitalized with appendicitis during the lyric-writing process. The song was originally conceived as a fast, jazzy scherzo, but during previews in Philadelphia it was reworked into a slower, wistful solo for star Gertrude Lawrence, who performed it to a rag doll that George Gershwin had purchased from a local toy store to underscore the character's loneliness. Lawrence's 1927 recording reached number two on the charts. The melody is built on repeated notes that generate emotional tension through subtle harmonic shifts beneath them, creating a sense of vulnerability and yearning that has made the song one of the most enduring ballads in the Great American Songbook. Its elegant yet accessible construction has invited hundreds of recordings across styles, from Art Tatum's virtuosic piano interpretations and Coleman Hawkins's tenor saxophone treatments to vocal readings by artists spanning generations. The composition stands as one of Gershwin's most celebrated achievements, blending his jazz sensibility with a classical lyricism often compared to Chopin.