If you are an American Horror Story fan, hopefully you are also a Lady Gaga fan: With Jessica Lange leaving the popular franchise, Gaga will take over as the star in the upcoming series, Radar reports. "Make your reservation now. #GagaAHSHotel," the pop star tweeted yesterday, along with a short video of her announcing the show, which debuts in October. TVLine reports that no details about Gaga's role have yet been revealed, but the CEO of FX has previously said the fifth season will be "very different" from the first four. (Click to see Gaga's shiny new engagement ring.)