As Wham!’s ‘Last Christmas’ celebrates its 40th anniversary, the ongoing debate continues: Which is the greatest Christmas song of all time? While Mariah Carey’s ‘All I Want For Christmas Is You’ dominates global charts and enjoys a massive festive following, ‘Last Christmas’ holds a significant cultural impact, especially in Europe and Asia. This article explores the bittersweet narratives of both songs, the impact on holiday traditions, and the playful competition surrounding them.