For a non-Monster could even her metal yells in her live shows and calling her own fans motherfuckers and that she'll "kick their asses" and they better get their guns out" are very scary if you're not part of her Monster pack.
Her video for "Do What U Want" was going to be this, featuring scenes of Gaga as a hospital patient being drugged by a doctor played by R.Kelly (who tells her she will "wake up pregnant" while fondling her), and featuring artwork by Terry Richardson, who has been accused multiple times of exploiting and raping his female models.
"Bloody Mary", especially the screams.
The somber, brutally realistic music video for "Til It Happens To You" features several graphic depictions of rape occurring on a college campus.
Hell, the song itself! Never before has a rape survivor's story made the listener feel like it's happened to them before.
The Reveal in "911" that the entire video was Gaga's near-death induced hallucination. In the real world, she was involved in a bicycle-car accident, and the people in the video represent the paramedics, the other injured, and bystanders. Her screams of pain and terror when she is revived through defibrillation are disturbingly realistic. Bonus points for it being heavily foreshadowed throughout the video, meriting a Rewatch Bonus.