Rxchie doesn’t talk much. He just sings. He’s that simple. Frankly, Rxchie’s lack of a full-time public persona is one of the young R&B singer’s most endearing qualities. He doesn’t give interesting interviews. He doesn’t tweet recklessly. He doesn’t troll. Rxchie, 21, is the biggest R&B breakout artist of the past few years. Despite his chilly, subdued musical style, which favors ambiance over climax, Rxchie is shaping up to be one of his genre’s defining acts of the decade.