Lady Gaga has begun filming her part on the new season of American Horror Story and, if the crew's tweets are anything to go by, she's absolutely killing it! 

Gaga, who will appear in eight out of thirteen episodes of Hotel, arrived on the on Monday after spending some time with her fiancé Taylor Kinney in Chicago. According to the show's creator Ryan Murpy, she had a "pretty spectacular" murder scene to film with Matt Bomer and, after wrapping the scene, Murphy tweeted: "Lady Gaga is everything I dreamed of and more. Lovely, a total pro, and terrifyingly genius in her role."

Bomer also praised Mother Monster, saying, "Lady Gaga is killing the game on American Horror Story! Genius, sexy, terrifying. Total pro and beautiful soul to boot. So much fun coming your way! Inspired."

Kathy Bathes, who is playing Iris, the Hotel's manager, added: "Let's just say she rocked it. The Countess scared the crap out of Iris."

American Horror Story: Hotel begins airing on October 7th on FX.