Chicago Blues is a music genre that originated in the 1940s in Chicago, Illinois. It evolved from earlier forms of Delta Blues and features a strong rhythm, electric guitars, and harmonicas. The genre is characterized by its expressive lyrics, often dealing with themes of hardship and love. Key figures in Chicago Blues include artists like Muddy Waters, Howlin' Wolf, and Willie Dixon. The genre played a significant role in the development of rock and roll and has influenced many musicians worldwide. Its vibrant sound and emotional depth continue to resonate with audiences today.