"Greensleeves" is a traditional English folk song with roots stretching back to the late 16th century, first appearing as a broadside ballad titled "A Newe Northen Dittye of ye Ladye Greene Sleves." The lyrics tell a story of unrequited love, where the singer laments a lady who has rejected his affections despite his devotion and gifts. This enduring melody and narrative have been passed down through generations, making it a timeless expression of longing and devotion. Olivia Newton-John's rendition brings her signature vocal style to this classic tune.