And no, Katy Perry isn't in it.
The app keeps her adoring fans up to date on all things Tay-Tay and even features its own Tay-mojis (holy God). We'll have the full video here when it debuts.
"The video shows Taylor on a night out".
Ravenous Swifties first began anticipating the video on Tuesday when director Joseph Kahn shared a cryptic tweet alluding to the time Swift was spotted at a London kebob shop back in October.
With Swift still laying low on social media, staying away from the media and skipping high-profile events, the music videos are pretty much the only way she's promoting Reputation.
Watch the teaser here. This is Swift's only song on the record with featured artists. "Ready For It?" and "Look What You Made Me Do" were.