Catholic school officials at the New York school Lady Gaga went to are following anti-suicide groups by reportedly blasting her gory performance at the MTV Video Music Awards last weekend.
The singer stunned the star-studded audience at the Big Apple ceremony with her most bizarre stage act to date with a shocking rendition of her hit Paparazzi.
Gaga danced with crutches alongside a wheelchair-bound performer while blood poured down her bare mid-riff.
She was then surrounded by her dancers, who acted as if to mourn her death, before her lifeless and blood-spattered body was pulled up from the stage on a winch as the curtain came down.
Click here to see a full-size Reuters image of Lady Gaga during the controversial performance.
The performance sparked criticism from teen suicide prevention group PAPYRUS, whose bosses accused her of "romanticising suicide".
The singer later revealed that the quirky routine represented her private life being killed by the paparazzi.
However, Gaga, who attended the Convent of the Sacred Heart girls school as Stefani Joanne Angelina Germanotta, has failed to justify her sensational show to the nuns who teach at the centre in Manhattan's Upper East Side.
A source tells the New York Post, "When someone showed the nuns a video of her bloody performance at Sunday night's VMA Awards, the good sisters were not amused."
A school spokesperson had not responded to requests for a comment as WENN went to press.