Taylor Swift and Joe Alwyn have been notoriously private about their relationship, but on Friday (September 28), the pop star stepped out in public to support her actor beau.

Wearing a black and red beaded gown, Swift made a rare appearance alongside Alwyn at the New York Film Festival premiere of his movie The Favourite at the Lincoln Center. Though she didn't walk the red carpet with Alwyn, the singer was spotted exiting the theater through a stage door after the event, where she linked up with the actor before the pair headed home together.

Swift and Alwyn have been dating for a little over a year. Last month, Alwyn opened up about his and the performer's high-profile, highly private relationship—sorta—to British Vogue, sharing, "I'm aware people want to know about that side of things. I think we have been successfully very private and that has now sunk in for people."

See photos of Taylor Swift and Joe Alwyn's New York City premiere outing, below: