Santo & Johnny were an American rock and roll duo from Brooklyn, New York, comprising brothers Santo and Johnny Farina. Known for their signature sound of steel and electric guitar, they became famous in the late 1950s with their instrumental "Sleep Walk." The song, characterized by its distinctive slide guitar leads and smooth rhythm, set a new trend in the music industry and influenced many artists in the genre. The duo's combination of rock and roll with elements of blues and country had a significant impact on the development of instrumental rock music.