It's called “Look What You Made Me Do,” and the 27-year-old sounds seriously mad at some people.
Is it Katy Perry? Kanye West? Kim Kardashian?
Or maybe all of the above.
Or maybe it's another shot at an old lover. Either way, Swift is back.
The full album is slated for release on November 10.
Go ahead and give the new song a listen, make sure to plug your headphones in.