These Korean idols are adored by fans from all around the world – but they also have their fair share of haters.
According to a post in Koreaboo, there have been some anti-fans who have done horrendous things to these stars.
For instance, a fan gave Super Junior's Hangeng a box of cake. However, after opening it, the staff saw that the box contained bags of blood, a knife, and a stabbed photo of Hangeng.
It was also confirmed that the cake contained poison in the form of powder.
Creeped out yet? Browse through the gallery to see more anti-fan crimes.