Justin Bieber has officially lost it!

The singer, who’s been coming undone for months during his Purpose tour, attacked a fan in Spain — and it was all caught on video. It's pretty damn shocking!

In the video, the Canadian is seen riding in the back of a car in Barcelona when an excited male fan reaches into the back of the vehicle where Bieber is seated. Moments later, we see an arm punching out from the backseat of the car and striking the fan in the mouth. Moments later the fan’s mouth is bloody. That's definitely not good!

So basically the Biebs took out one of the Spanish Beliebers, who is reportedly a minor, in a fit of rage. We smell a lawsuit!

Dude, needs to take a tour break!