The Biebs totally proved he's not the swaggiest boss at everything in life after losing a beer shotgunning contest. The "bro" moment went down when the "What Do You Mean" singer visited Las Vegas last weekend to watch friend Floyd Mayweather's fight.
While there, the Biebs took time out to take part in a competition of his own. In a video uploaded to his Instagram, Justin is seen in a shotgunning contest with friend Sam Shahidi while at a pool party. Unfortunately for Bieber, he wasn't very good at shotgunning his can of Corona and his pal totally crushed him.
"I lost but I didn't go to college," Justin captioned the video. Watch the hilariousness, below.