Alwin "Al" Lopez Jarreau is a seven-time Grammy Award winning American jazz singer.
McKinley Morganfield a.k.a Muddy Waters (Born April 4, 1913 - Died April 30, 1983) This musician is better known as "The Father of Chicago Blues". He is also the real father of famous blues musicians Big Bill Morgnafield and Larry "Mud Morganfield" Williams. This musician was the inspiration for british rock style such as The Beatles. http://voices.yahoo.com/top-10-blues-singers-all-time-3392498.html