Justin Bieber punched a dude in the face, threw him against the wall at a Coachella party: TMZ

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Justin Bieber, who appeared to be having the time of his life at Coachella on Friday, punched a guy and threw him against the wall at a party after the man had grabbed a woman by her throat, according to TMZ.

Sources familiar with the situation tell us Justin and a friend showed up at a party Saturday hosted by Patrick Schwarzenneger. Justin was talking to some people when a guy walked in, spotted a woman … and went ballistic. Sources at the party say he appeared to be on drugs — and it looked as if the woman may have been his ex-GF.

We’re told the guy suddenly grabbed the woman by the throat and would not release her. Justin and his friend started screaming at the guy to let her go, but he only screamed back “Go f*** yourself” … maintaining his grip. At that point, Justin hit the man in the face and pushed him against the wall … allowing the woman to break free.

TMZ reports the man Justin punched was thrown out of the party and arrested a short time later, after he was spotted chasing and screaming at an SUV that he thought Justin was in.

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