The Four Shades of Rhythm were an American R&B group formed in Cleveland, Ohio, in 1938. Established in a hotbed for R&B musicians, the Four Shades of Rhythm are generally considered the first group to emerge from the scene. After singer and drummer Oscar Lindsay reshuffled the group's line-up in the 1940s, the Four Shades of Rhythm performed and recorded in Chicago. At least seven singles were released during their career.