Robert Leroy Johnson (May 8, 1911 – August 16, 1938) was an American blues musician and songwriter. His singing, guitar playing and songwriting on his landmark 1936 and 1937 recordings has influenced later generations of musicians. Although his recording career spanned only seven months, he is recognised 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.