Before Berry Gordy started Motown—before Russell Simmons and Suge Knight were even born—Don Robey epitomized what it meant to be a black music mogul. Working in Houston from the 1930s until his death in 1975, Robey discovered Clarence “Gatemouth” Brown. His record company released the original version of “Hound Dog,” and he made Bobby “Blue” Bland a star. Ike and Tina Turner, B.B. King, and Little Richard were clients of his booking agency, and T-Bone Walker, “Big” Joe Turner, and Wynonie Harris all regularly graced the stage at his nightclub, where legendary after-parties saw the likes of Sister Rosetta Tharpe jamming with Big Bill Broonzy and Louis Jordan.