This year, Irving Berlin’s hit song ‘White Christmas’ is 80 years old. Noted as the best-selling single of all time (Guinness World Records) with an estimated 50 million copies sold worldwide, here's some versions of the song heard around the world - Merry Christmas! 🎁 #WhiteChristmas #IrvingBerlin #HeardAroundTheWorld #ImDreamingOfAWhiteChristmas