Jimmy Smith and the Big Band was a significant ensemble in the jazz genre, particularly noted for incorporating the Hammond B3 organ into a big band setting. Led by Smith, a pioneering jazz organist, the band was characterized by its unique blend of hard bop and soul jazz. Their stand-out works, such as the album "The Cat", are regarded as influential in their field. The group's blend of organ-led melodies and big band arrangements offered a distinctive sound, contributing to the evolution of jazz music in the mid-20th century.