Harry Styles, watch out.
The caption she included with it read, "Somewhere in LA."
For anyone like Styles who has ever dated the "Story of Us" singer, that can't be good news—at least if they hope not to be the latest inspiration for a track off Swift's upcoming album.
The 23-year-old pop superstar, of course, is famous for writing about her breakups—just ask her ex, John Mayer, who was the subject of her track "Dear John."
No doubt, Swift will find plenty of material in her relationship with Styles, whom she dated for two months before the pair called it quits after reportedly getting into an argument while vacationing in the British Virgin Islands.
As she herself tweeted to fans the other day, "Back in the studio. Uh oh…"