An American composer and lyricist, Warren Casey (1935–1988) is best known for co-creating the iconic 1971 musical Grease with Jim Jacobs. This rock and roll-infused production became a cultural phenomenon, celebrated for its nostalgic portrayal of 1950s high school life and its catchy, enduring songs. Casey's contributions to Grease solidified his place in popular music history, influencing generations with its vibrant energy and memorable score.