ust how mesmerizing is Kierra Sheard’s voice? Captivating enough to shut down a noisy audience until you can hear a pin drop. Case in point: Sheard’s recent Grammy Week performance at BET’s annual Music Matters showcase. Those lucky enough to be in the audience were treated to a brief but powerful set that included a song about insecurities, both physical and emotional in her latest single, “Flaws,” as well as a goose bump-raising cover of the Mary J. Blige classic “No More Drama.” That colorful versatility provides the creative blueprint for Sheard’s contemporary urban inspirational sound.... Lee mas