Deck the Halls is a traditional Christmas carol whose melody comes from a Welsh winter song, with English lyrics that became widely known in the nineteenth century. It has since been recorded in countless styles, from choirs and orchestras to animated and family-friendly arrangements, and remains a staple of holiday playlists, school concerts and seasonal television. Its simple, repetitive chorus makes it instantly recognisable even to listeners who do not know the full lyrics, which is why short clips of it are still shared every December for festive videos, memes and greetings.