Kat Williams born Katrina Williams (February 24, 1964) is an American Emmy Award-nominated blues singer. She is most noted for her soulful and blues textures. Born in New York, she started singing at a very young age. Throughout her career she made very memorable appearances on television and through radio. She was a finalist on America's Got Talent, where she made it through to the Las Vegas rounds. Williams also appeared on The Tonight Show with Jay Leno.