Luther Monroe Perkins (January 8, 1928 – August 5, 1968) was an American country music guitarist and a member of the Tennessee Three, the backup band for singer Johnny Cash. Perkins was an iconic figure in what would become known as rockabilly music. His creatively simple, sparsely-embellished, rhythmic use of Fender Esquire, Jazzmaster and Jaguar guitars is credited for creating Cash's signature "boom-chicka-boom" style.