Robert Lockwood Jr. was an American Delta blues guitarist, who recorded for Chess Records and other Chicago labels in the 1950s and 1960s. He was the only guitarist to have learned to play directly from Robert Johnson. Robert Lockwood was one of the first professional black entertainers to appear on radio in the South, on the King Biscuit Time radio show. Lockwood is known for his longtime collaboration with Sonny Boy Williamson II and for his work in the mid-1950s with Little Walter.

Robert Leroy Johnson was an American blues musician and songwriter. His landmark recordings in 1936 and 1937 display a combination of singing, guitar skills, and songwriting talent that has influenced later generations of musicians. Although his recording career spanned only seven months, he is recognized as a master of the blues, particularly the Delta blues style, and as one of the most influential musicians of the 20th century. The Rock and Roll Hall of Fame describes him as perhaps "the first ever rock star".