Taylor Swift was thrilled when her fans bought 1.287 million copies of her album, "1989," in its first week

Over the holidays, she wanted to make sure they knew how much she appreciated their support.

Last month, the singer, 25, began looking through her fans' social media feeds, studying their likes, hometowns and occupations. After she gleaned enough information to make educated guesses about how to shop for them, she commented on their pages with a Santa emoji.

Then the real fun began. Swift chose gifts, wrapped them, and sent them out to the people who have always backed her and her work. For one very special fan, the "Shake It Off" singer even made a house call.

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