Kevork Djansezian/Getty Images for NARAS
Dressed in a sparkly jumpsuit and dancing in front of a background of trees, she was joined on stage by her friend Jack Antonoff, from the bands Bleachers and fun. Swift and Antonoff wrote the song together.
She's already won two awards tonight and has a total of seven nominations.
.@TaylorSwift13 OWNED the #GRAMMYs stage to get things going. #ETGRAMMYs pic.twitter.com/H5bxJEx17Q
- EntertainmentTonight (@etnow) February 16, 2016