Lonnie Mack was a pioneering American blues-rock musician whose career spanned over four decades, from the 1960s to 2000s. Known for his soulful vocals and innovative guitar playing, Mack significantly influenced the development of blues-rock and Southern rock genres. His signature sound was characterized by a unique blend of country twang and urban blues, exemplified in influential works like "Memphis" and "Wham!". Mack's indelible impact on music history has been acknowledged by many guitar greats, including Stevie Ray Vaughan and Eric Clapton, who cite him as a major influence.