Sources familiar with the situation tell us the fight started after both Travis and Tyga were on stage behind the DJ booth ... and when Richie grabbed the mic he gave props to both rappers, saying something to the effect of, “We got T-Raww, AE and Travis in the building.”
We're told Travis seemed pissed he was being lumped in with Tyga -- possibly a
Kylie Jenner exes thing -- so, Travis snatched the mic out of Ritchie’s hand, prompting AE to say something to Trav. For context, AE and Tyga are besties.
We're told Travis approached Tyga’s security with threats and stormed offstage ... only to return with Southside moments later.
That's when Southside and AE started going at each other ... at first just pushing, but then AE landed several uppercuts, before Travis pulled AE off Southside, and nearly fell offstage in the process.
Then AE and Travis started tussling across the stage. Of course, once news of the fight started spreading on social media ... many people described it as Travis Scott beating up Tyga.