J.J. Jackson is an American soul and R&B singer, best known for his 1966 hit song "But It's Alright". His style is characterized by a powerful, rough voice and a dynamic, soulful delivery, which was highly influential in the development of the funk genre. Jackson’s contributions to music are significant, as he helped to bridge the gap between the rhythm and blues of the 1960s and the funk sound that emerged in the 1970s. His work has continued to influence numerous artists in these genres.