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At a Las Vegas party before the Floyd Mayweather/Andre Berto fight on Saturday, Justin Bieber took part in a showdown of his own when he competed in a beer-shotgunning challenge.

The 21-year-old singer posted the evidence of his poor beer-chugging skills on Instagram. The short video features Bieber going up against friend Sam Shahidi, who quickly downs his can of Corona to win the head-to-head.

“I lost but I didn’t go to college,” Bieber captioned the post.

It’s clear from the caption and the pained expression on his face that Bieber hasn’t had a ton of practice with the classic frat game.

The singer graciously accepted the loss, throwing his hands up in the air even after the epic defeat. This good-natured attitude seems like another step on Bieber’s journey to show the world that he has recently matured.

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Write to Megan McCluskey at megan.mccluskey@time.com.

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