Lady Gaga confirmed to star in "Sin City 2: A Dame to Kill For"

After making her debut on the big screen with the movie Machete Kills, singer Lady Gaga has been confirmed to star in the upcoming film "Sin City 2: A Dame Kill For".

According to the British website IB Times, the Mother Monster will make a cameo in the film playing a waitress.

The film also features actors Bruce Willis and Jessica Alba, and directed by Frank Millers and Robert Rodriguez, the latter is also responsible for directing Machete Kills.

Sin City 2: A Dame Kill For debuts in U.S. theaters on August 22.