This chapter examines the work of Frank Loesser. It begins with an extended commentary of his career, followed by details on productions, with data and song information. Loesser came from a musical family. His father, Henry, was a Prussian-born piano teacher; his older brother Arthur was a renowned concert pianist. Frank, though, was a musical black sheep; refusing to study the classics, he taught himself piano and immersed himself in popular music. His first published song was In Love with the Memory of You (1931), with music by William Schuman (later a classical composer and the president of Juilliard). By the mid-1930s Loesser was singing and playing in nightclubs, as well as writing special material with composer Irving Actman.