So it turns out that O.T. Genasis started that huge brawl that involved Nipsey Hussle.

Some footage recently surfaced of Nipsey fighting with a man outside of a Hollywood nightclub, and until now it wasn't clear what started it all.

But TMZ just released a video of O.T. Genasis punching someone inside the venue, and that same guy later approached Nipsey thinking he was O.T. 

Nipsey ended up fighting the guy just to protect himself. He and O.T. were both wearing plaid shirts and they are both rappers, so that could be the reason why they were mistaken for each other.

This is the second time this year that O.T. was involved in some sort of club melee. A few months ago, one of his people allegedly pulled out a gun and threatened to shoot up a  Los Angeles venue. That's because they were with some young looking girls, who were asked for ID.

And for Nipsey, it seems like people are still talking about him slapping that guy at the NBA All-Star Game earlier this year, so he's certainly not new to physical confrontations.

You can see O.T. punch that guy in the club below.