Between home break-ins to threatening letters, celebrities are some of the most targeted individuals preyed upon by crazed followers.

This year alone, Ocean's 8 cast mates Sandra Bullock and Rihanna each suffered threats from overzealous admirers who went to terrifying lengths to get closer to them: In early May, Bullock was alerted of her longtime harasser's sudden death after he escaped a mental health institution, while Rihanna was fortunately absent at the time when a man broke inside and burglarized her home with plans of committing an unspeakable act.

Astonishingly, similar close calls have befallen other A-list celebs including Justin Bieber, Selena Gomez, Beyonce and many more.

Check out the gallery, below, for some of the most horrifying celebrity stalker stories.

12 Celebrities With Horrifying Stalker Stories