"Diễm Xưa" is a famous Vietnamese song composed by Trịnh Công Sơn, a renowned musician and songwriter. The song is celebrated for its poetic lyrics and melancholic melody, reflecting themes of love, nostalgia, and longing. It has become a classic in Vietnamese music, often performed by various artists. The title translates to "Old Flame" in English, symbolizing a past love that remains cherished despite the passage of time. "Diễm Xưa" is frequently associated with the Vietnamese music scene of the 1960s and 1970s, capturing the emotions of a generation during a tumultuous period in Vietnam's history.