Of course this routine is from 1989.

Taylor Swift may have pulled her music from online streaming services, but she can't stop people from making mashups using her tracks. And why would she want to, especially in this instance?

Some force in the universe wanted these two things to sync up with near perfection. YouTuber Thomas Jung found a classic aerobic dance video from 1989 and, in a moment of what we can all assume was epiphanous Eureka, decided to pair it up with Swift's "Shake It Off."

Check out the finished product up top, and then go give your collection of '80s aerobic dance workout videos a big hug.

via HuffingtonPost