Mississippi River stands as a poignant song in Janis Joplin's posthumous discography, appearing on the 1975 compilation album Janis. This recording captures the artist's signature emotional intensity and blues-infused vocal power, hallmarks that defined her brief but impactful career. The track reflects Joplin's deep connection to the American blues tradition, showcasing her ability to convey raw vulnerability and strength simultaneously. As part of a collection that also features other notable performances, the song highlights the enduring quality of her work beyond her lifetime. It remains a testament to her unique voice and the lasting influence she exerted on rock and blues music during the late 1960s and early 1970s.