Taylor Swift [1] is definitely walking in a Winter wonderland. On Wednesday, the pop star teamed up with Calvin Harris and her cute brother, Austin [2], to build a snowman of epic proportions. And the best part is, she documented the whole thing on Instagram! Taylor's wrapping up what might be her best year yet [3]; she assembled an epic squad [4], dominated the world with her 1989 world tour [5], and packed in plenty of sweetness with her beau [6]. Now, it's nice to see her taking a hard-earned break. Keep reading to see the whole snowman-building process, then check out more celebrity holiday fun from this season [7].