Jack Leroy "Jackie" Wilson, Jr. (June 9, 1934 – January 21, 1984) was an American soul singer-songwriter and performer. A tenor with a four octave vocal range, he was nicknamed "Mr. Excitement", and was important in the transition of rhythm and blues into soul. He was considered a master showman, and one of the most dynamic and influential singers and performers in R&B and rock 'n' roll history. Gaining fame in his early years as a member of the R&B vocal group Billy Ward and His Dominoes, he went solo in 1957 and recorded over 50 hit singles that spanned R&B, pop, soul, doo-wop and easy listening.