However, Sebert does make a brief, unexpected cameo in director David Lowery's new dramatic feature film A Ghost Story alongside Rooney Mara and Casey Affleck. The film premiered this weekend at the 2017 Sundance Film Festival.
Sebert — who's previously nabbed acting roles in Jane the Virgin, Nashville, and Jem and the Holograms — appears in the credits for A Ghost Story as "Spirit Girl." She makes two quick, non-speaking appearances in a party scene.
Lowery told BuzzFeed News how the casting came about. "I love Kesha’s music, I have just been a huge fan since her first album," he said. "And a lot of people find that surprising about me, but I just really, really love her music. I’ve wanted to use it in a film for quite a long time."
A still from A Ghost Story; director David Lowery