The American Folk Blues Festival was a music festival that toured Europe as an annual event for several years beginning in 1962. It introduced audiences in Europe, including the UK, to leading blues performers of the day such as Muddy Waters, Howlin' Wolf, John Lee Hooker and Sonny Boy Williamson, most of whom had never previously performed outside the US. The tours attracted substantial media coverage, including TV shows, and contributed to the growth of the audience for blues music in Europe.

McKinley Morganfield, known professionally as Muddy Waters, was an American blues singer and musician who was an important figure in the post-World War II blues scene, and is often cited as the "father of modern Chicago blues". His style of playing has been described as "raining down Delta beatitude".