YouTube celebrity Sam Pepper posted a prank that was meant to be funny, but it's anything but.

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On Saturday, Pepper released a horrifying video that features two best friends where one of them tricks the other into thinking they were held hostage and watching his friend get shot in the head.

The two guys Sam and Colby- who have their own YouTube channel- are going for a drive when Colby gets out of the car pretending there's something wrong with it. When they pop the hood, a man in a black mask comes from behind and throws cloth around Sam as he flips out and screams his head off. Colby then helps tie him up and throws him in the trunk of the car.

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The next scene gets more frightening when both of the guys are tied up on a rooftop. When their masks come off, Sam is hysterically in tears as he begs to be let go. The man who attacked him is there with a 'gun' and holds it towards Colby's head. As Sam continues to beg and scream, the gun goes off and Colby falls over looking like he just got murdered in front of his best friend.

Colby lays there for a while letting his friend flip out and look traumatized before he gets up and tells him he's okay.

The video can be seen below. Watch at your own consent.

Pepper is known for controversial and inappropriate videos, some that include sexually harassing women on the street.

Tags: Sam Pepper