We’ve seen Kristen Stewart get into character as Joan Jett for the biopic The Runaways—now we actually get to see her flex those vocal chords in the teaser trailer for the film.

The atypical coming-of-age story focuses on Joan Jett’s relationship with band mate Cherie Currie, played by Stewart’s New Moon co-star Dakota Fanning. While there is no release date as of yet, the movie is expected to premiere at the Sundance Film Festival in January.

Are you buying Stewart’s and Fanning’s portrayals of the teenage rockers?