Samuel George "Sammy" Davis, Jr. (December 8, 1925 – May 16, 1990) was an American entertainer. Primarily a dancer and singer, Davis was a childhood vaudevillian who became known for his performances on Broadway and in Las Vegas, as a recording artist, television and film star, and as a member of Frank Sinatra's "Rat Pack". At the age of three Davis began his career in vaudeville with his father and "uncle" as the Will Mastin Trio, toured nationally, and after military service, returned to the trio. Davis became an overnight sensation follow…