Yeehaw! Country cutie Taylor Swift brought the house down with her performance at the 17th Annual Country Thunder USA music festival in Twin Lakes, Wisc. on Thursday.

The award-winning singer also took time out to meet fans and sign autographs. She was joined by her BFF Kellie Pickler, who also performed at the festival

SEE ALL 16 PICS OF TAYLOR AND KELLIE IN THE GALLERY!

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