Taylor Swift: Being a musician who's famously good at interacting with your fans does NOT mean you should do any of the following things: wander around in army fatigues at the foot of her driveway, attempt to swim across a mile of ocean to get to her beach house, send her 735 disturbing tweets saying you'd die to be with her. And yet, all of these things have happened to Swift.
Lana Del Rey: The singer was granted a restraining order after two Russian fans sent letters to her home, slept outside of her house and screamed her name in the middle of the night. She reportedly hired a full-time bodyguard for protection before the restraining order was granted.
Bjork: Back in '90s, a pest control officer, obsessed with Bjork, mailed a sulphuric acide bomb disguised as a book to her London home. Thankfully, it was intercepted by police - but not before Lopez had committed suicide. In a remarkable show of empathy, Bjork sent a letter of condolence and flowers to the man's family.
Beyonce: After a British fan became convinced that Beyonce was an imposter who had murdered the real Beyonce and taken over her life, he sent her a number of threatening latters and tried to give her a book of his own religious writings. She won an anti-harrassment order against him in 2011.
Jessie J: A few years ago, Jessie J broke her leg and had to perform on-stage in a cast for several months. One fan was reportedly so obsessed with the singer that they broke their own leg to be like her, saying, "I will do anything to be just like you."
George Harrison: Of course, it was John Lennon who suffered the fatal consequences of fan obsession, but George Harrison did hit the headlines in 1999 after a fan walked into his Hawaii home and cooked herself a pizza.
Madonna: In 2010, a man was arrested after being found outside Madonna's New York apartment holding a pocket knife in a bag, and with an ice pick in a truck. He avoided jail time after his lawyer argued that he had served with the New York City Fire Department for 20 years. Because that was relevant.
Usher: The musician took out a restraining order on a fan in 2012 after she repeatedly insisted that the pair were married. In court, he also revealed that she'd turned up at his home in Georgia and hammered on the front door.
Joe McElderry: In 2012, the former X Factor winner was interrupted while in the bath by a fan attempting to give him some opera CDs. It sounds mildly absurd, but we imagine having a stranger walk in on you having a bath would actually be mildly terrifying.
Shania Twain: The singer testified in court against an obsessive fan who turned up at her house, the Juno awards and - by far the worst of all - at her grandmother's funeral.
Noel Gallagher: For some reason, the former Oasis frontman seems to think it's a badge of honour to have a stalker. "I have got a stalker," he proudly revealed in an interview. "She's a proper lunatic. Breaking into hotels and stuff, shouting underneath the door. She's like, 'I know you're in there!'"
Lily Allen: The singer only recently spoke publicly about a seven-year ordeal which began with a tweet, and ended with a man bursting into her bedroom while she slept. The man is now in prison, but none of his actions pre-2015 were included in the charges, because police had destroyed the evidence. Allen is using the incident to tackle the police's handling of stalking and harrassment cases.