Radiating charm and singing with a lilting soprano capable of country ballads and empowerment anthems, Olivia Newton-John captivated generations with her voice, self-deprecating sense of humor, and accessible, engaging demeanor. From earnest hits like "I Honestly Love You" to '80s-defining pop like "Physical," Newton-John shaped a generational playlist, one that also includes so many of the numbers she sang in Grease. Away from entertainment, her support of environmental causes and cancer awareness organizations made her a powerful advocate. In this special issue, we celebrate her remarkable life. Dame Newton-John was one of a kind, and the legacy she leaves is singularly sweet.