Leonard Garfield Spencer was an American singer, composer, booking agent and vaudeville star who was considered one of the most popular recording artists in the United States from the 1890s to the 1910s.

Berliner Gramophone – its discs identified with an etched-in "E. Berliner's Gramophone" as the logo – was the first disc record label in the world. Its records were played on Emile Berliner's invention, the Gramophone, which competed with the wax cylinder–playing phonographs that were more common in the 1890s and could record.