George and Leslie York, known professionally as The York Brothers, were an American country music duo, popular from the late 1930s through the 1950s, known for their close harmony singing. Their country boogie style, a precursor to rockabilly, combined elements of hillbilly, jazz, and blues music. Although originally from Kentucky, they are often associated with the city of Detroit, where they were based for several years, and which they paid tribute to in songs such as "Hamtramck Mama", "Detroit Hula Girl", and "Motor City Boogie".

Hillbilly is a term for people who dwell in rural, mountainous areas in the United States, primarily in the Appalachian region and Ozarks. As people migrated out of the region during the Great Depression, the term spread northward and westward with them.