Get ready for another famous Swift sibling.
While Taylor Swift is arguably becoming one of the most famous musicians of all time, her 23-year-old brother Austin is getting into the film business.
WATCH: Jaime King Says Taylor Swift Will Make an 'Amazing' Mother
The 25-year-old singer proudly posted a movie still of her sibling, writing: "My brother @austinkingsleyswift just acted in his first movie and I'm all proud and stuff."
According to Austin's IMDB, he will play the character of Lance in the revenge thriller I.T. Former James Bond actor Pierce Brosnan stars in the movie as "a successful book publisher who finds himself pitted against a young disgruntled I.T. consultant who is tech savvy and uses that to threaten the author’s family and livelihood," Deadline reports.
WATCH: A Who's Who Guide to Taylor Swift's 'Bad Blood' Music Video
Austin's big sis may also be getting back into acting. Law & Order: SVU star Mariska Hargitay revealed to ET that the show has been in talks to have Taylor -- who has already had roles in The Giver, Valentine's Day, New Girl and CSI -- on as a guest star.
"We just talked about it," Hargitay said of Swift, who's a diehard Law & Order fan. "We’re going to wait until the end of the [1989 World] tour to see how it goes. But it’s in the air."
MORE: Taylor Swift Unites Cat Olivia Benson With 'Real-Life' Olivia Benson For the First Time
While the Swift siblings' stars are rising, they're not forgetting where they came from. Taylor's gal pal Lorde recently revealed how Austin keeps his sister humble: