Lil Hardin Armstrong, born Lillian Beatrice Hardin on February 3, 1898, in Memphis, Tennessee, was an American jazz pianist, composer, arranger, singer, and band leader who carved out a substantial legacy in the world of jazz music. Often referred to as "Hot Miss Lil," she was a pioneering figure in the Chicago jazz scene and played a crucial role in the development of early jazz. After studying music at Fisk University, she relocated to Chicago, where she became a sought-after pianist in the city's thriving jazz clubs.

Lil's career took a significant turn when she joined King Oliver's Creole Jazz Band in 1921, where she met the legendary trumpeter Louis Armstrong. The two married in 1924, and Lil was instrumental in furthering Louis' career, pushing him towards fronting his own ensembles and helping with compositions and arrangements. She composed numerous tunes, some of which became jazz standards, including "Struttin' With Some Barbecue," "Don't Jive Me," and "Just for a Thrill." Lil Hardin Armstrong's influence on jazz extended well beyond her partnership with Louis; after their separation, she led her own bands and continued to record. Although her contributions were sometimes overshadowed by her association with Armstrong, Lil Hardin Armstrong's talent and impact stand on their own, as evidenced by her recordings like "Boogie Me," and compilations that celebrate her work such as "1936-1940 Anthology" and "Presenting Lil Hardin Armstrong." She passed away on August 27, 1971, but her music and indomitable spirit remain integral to the story of jazz.