Filling Grumpy Cat with Holiday Cheer

All popular Christmas music is novelty music. They may not have all started that way, but “White Christmas” and “Grandma Got Run Over by a Reindeer” and countless others are made to take advantage of the market for seasonal music—one that made Michael Bublé’s Christmas the second-biggest selling album of 2011 after only Adele’s 21 with more than two million copies sold, and this year made Pentatonix’ That’s Christmas to Me a good bet to become one of the few albums to sell a million copies.