Christmas day has to be one of the most stressful days of the year. There’s turkeys to roast, shreds of wrapping paper to clean, dinner tables to set and guests to entertain… Thank God Christmas songs are there once the chaos has ended. With such a large library of classic festive songs, lifting those tattered spirits after a hectic day’s work is easy.   For the quintessential Christmas spirit lifter, it’s hard to beat the sugar-coated pop of Mariah Carey’s “All I Want for Christmas Is You”, which has become THE unofficial song of the holiday season. Pair this song with a comfy chair and your favourite drink for the…