Lady Gaga joins 'American Horror Story' cast

Big news for Lady Gaga's legions of Little Monsters -- she is headed to a television screen near you, in what is sure to be a creepy role.

The quirky pop diva announced on Twitter that she will star in season five of "American Horror Story," and revealed the FX show's new theme -- "Hotel".

"Make your reservation now. #GagaAHSHotel," the star tweeted, along with a short black and white clip of herself in a thick black mask, which she removes before whispering, "Hotel."

The clip also reveals her name in the script used for the show's credits and its start date -- "October".

Gaga's announcement had been retweeted more than 70,000 times in about three hours, including by series co-creator Ryan Murphy -- who is also the brains behind high-school musical series "Glee."

Gaga, real name Stefani Germanotta, has had small roles in a few films including "Men in Black 3" -- and an uncredited appearance in an episode of "The Sopranos" -- but this will be her first starring role as an actress.

"American Horror Story" -- an anthology series with a different plot each season, but a repertory cast of actors -- was in search of a new star.

Jessica Lange, who won two Primetime Emmys and a Golden Globe for her work on the show, bowed out after four seasons.