Justin Bieber Struggles to Shotgun a Corona: Watch

Courtesy of Def Jam
Justin Bieber photographed in 2015.

Justin Bieber could be excused for raising a toast to his successful comeback campaign. Though trying to shotgun a Corona probably wasn’t the wisest move. 

The 21-year-old pop star posted footage on Instagram of himself drinking like a frat boy ahead of the Floyd Mayweather fight Saturday night in Las Vegas.

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Mayweather, of course, won his 49th and final fight. But Bieber, the video reveals, lost this particular battle. The Canadian singer, whose latest song "What Do You Mean" is a worldwide hit, struggles to down his drink in one and he spills, pulls a pained expression and comes in last. "I lost but I didn't go to college," Bieber admtited.