Jack Leroy Wilson Jr. was an American singer of the 1950s and 1960s. He was a prominent figure in the transition of rhythm and blues into soul. Nicknamed "Mr. Excitement", he was considered a master showman and one of the most dynamic singers and performers in soul, R&B, and rock and roll history. He hailed from Highland Park, a suburb of Detroit.

Levi Stubbs was an American baritone singer, best known as the lead vocalist of the R&B group the Four Tops, who released a variety of Motown hit records during the 1960s and 1970s. He has been noted for his powerful, emotional, dramatic style of singing. In 1990, he was inducted into the Rock and Roll Hall of Fame as a member of the Four Tops.