The song is part of Taylor Swift’s new album, “1989.”
But it’s also the perfect tune for this mash-up using an aerobic dance video from the 1980s!
Swift’s hit, “Shake It Off,” was set to the dance routine in a video on YouTube that went viral this week.
The dancing in the video appears to be perfectly synced to the song — as if it were being played during production.
Click above to watch the mash-up.