Fred Below was born in Chicago on September 16, 1926. Below played drums in high school and went on to study percussion at the Roy C. Knapp School of Percussion. Primarily a jazz drummer at the time, he played bebop and joined the Army as part of the 427th Army Band. After the service, he returned to Chicago in 1951 to find that blues gigs were what was happening. Jazz was in a lull.
Then Muddy Waters drummer Elgin Evans introduced Below to a group called the Three Aces — Junior Wells (vocals, harp), Louis Myers (guitar), and Dave Myers (bass) — who needed a drummer. As a jazz drummer, Below did not know blues drumming and it was a rough fit at first. The next big event came when Little Walter (on the sudden success of his instrumental "Juke") quit the Muddy Waters band and was replaced by Junior Wells. Little Walter then joined the Three Aces, which he had been itching to do because Muddy Waters did not play in the uptempo style that Walter was into. Little Walter and the Four Aces (later renamed the Jukes) were a perfect fit and this four-piece electric blues combo became the hottest band in Chicago.