"Who?" (1925) is a popular song (sometimes written as "Who (stole my heart away)?") written for the Broadway musical Sunny by Jerome Kern, Otto Harbach and Oscar Hammerstein II. The song was featured in the film version of Sunny (1930) starring Marilyn Miller.
George Olsen and His Orchestra scored a major hit with their 1925 recording of the song. Tommy Dorsey and His Orchestra with vocalist Jack Leonard had a hit with it in the late 1930s; their arrangement was patterned after Dorsey's 1937 recording of "Marie". Judy Garland sang the song in the Metro-Goldwyn-Mayer biopic Till the Clouds Roll By (1946), loosely based on the life of Jerome Kern.
Partial list of recording artists
This list was found by searching amazon.com's mp3 downloads for "Who", and are found by setting the 'sort by' drop down box to Song Title: Z to A, then going to pages 25–27. The version by Pearl Bailey is found by using Advanced Search and entering "Pearl Bailey" in the Artist Name box, and "Who" in the Song Title box.