Tekashi 6ix9ine Attacks DJ in Dubai, Retaliation Swoops In

Tekashi 6ix9ine knows he's on thin ice, legally, here in the States -- but it seems when he's overseas ... he lets it rip, just like he did on this poor guy here in the club.

Check out this video, obtained by TMZ, that shows the rapper in Soho Garden in Dubai ... where he approaches what appears to be the DJ for the night -- only to start swinging on the dude in what appears to be an unprovoked attack.

The DJ starts to scuffle with 69, that is ... before Tekashi's security swooped in and started separating the two, pulling their boss away -- but by then, even more people started flocking.

It actually looks like Tekashi gets wailed on by a few bystanders on the perimeter, and it also seems he was getting his chain yanked, his hair grabbed and his shirt pulled off toward the end as the fight evolved into an all-out mini brawl.

Now, as for what exactly might've caused this ... well, eyewitnesses tell us T69 was supposedly upset that the DJ wasn't playing any of his jams, and apparently felt the need to confront him about it. We've reached out to Tekashi ... so far, no word back.