P.S. I Love You by The Beatles is a heartfelt love letter conveyed through song, expressing deep affection and longing. This classic tune, originating from the UK, in the rock/pop genre, embodies themes of love, distance, and emotional connection. The constant reassurance of love, despite physical separation, is a particularly poignant element, encapsulated perfectly in the consistent phrase 'P.S. I love you,' which clings onto every promise of affection and loyalty between the lovers. The song's simplicity and genuine emotion capture the essence of enduring love.