It looks like Nipsey Hussle was involved in another altercation.

Last night, Nipsey was out celebrating his girlfriend Lauren London's birthday at Nightingale in WeHo.  O.T. Genasis was also in attendance with Nipsey.

According to TMZ, things turned ugly an hour into the night when fists started flying 

In the brawl, you can see Nipsey throwing a few punches as valet workers run away from the chaos. Nipsey eventually cooled down, but the fight broke out again. Security had to user their teasers to de-escalate the situation. Eventually, the police arrived.

Nipsey's team tells TMZ he was only defending himself and it was all a case of mistaken identity.

The men he was fighting first attacked him because they thought he was someone else. We're told the men accused Nipsey of starting a fight earlier in the night inside the club, but Nipsey had nothing to do with it. The whole thing was started as a result of mistaken identity and Nipsey was only defending himself.

Drama is nothing new for Nipsey.

He got into it a brawl last year at his album release party, and also slapped a man a few months ago at the BET Awards.