Lady Gaga has announced that she will appear in Sin City: A Dame To Kill For, the sequel to 2005's Sin City based on Frank Miller's graphic novels. Gaga has nabbed the small role of a waitress, while Jessica Alba and Rosario Dawson are also set to star in the film.

Gaga broke the news on Instagram, writing that she will be in the movie "with my favorite scene partner Joseph Gordon-Levitt." She also gave a shout out to director Robert Rodriguez, saying "he really killed this one!"

Gaga's fans were, of course, excited by the announcement, tweeting their encouragement. But the Mother Monster herself assured them it's just a small role and that her main focus is still on her music.

Sin City: A Dame To Kill For will be in theaters August 22 — meanwhile, check out Gaga in the film's Comic-Con trailer, below:

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