Taylor Swift's applied to trademark her voice and appearance in an apparent attempt to protect herself from artificial intelligence impersonations.
AI-generated versions of the singer have appeared recently - including a fake election ad in which she appeared to urge people to vote for Donald Trump.
Actor Matthew McConaughey's recently done the same.
Although, she admitted she didn't care about the response to the track because she adored it.
The star says she wrote the hit when she was in a bad mood at the age of seventeen.
Meanwhile, she claims people "slept on" her Reputation album for six or seven years.