It's the most wonderful time of the year! Well, almost. But Karen O is kicking things off with her cover of Bing Crosby's Christmastime hit song 'Marshmallow World' for a Target commercial, which you can watch below. According to a Target press release, the song will be used in "15 different TV spots throughout the season". Neato! Here's to hoping we get to hear the full version of the cover sometime, instead of just the minute long clip.

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