Jake T. Austin Throws Tantrum At Teen Choice Awards

It was shades of Lindsay Lohan at the Teen Choice Awards last weekend when a former Disney star went ballistic backstage ... even throwing a projectile at a staffer ... TMZ has learned.

The culprit is Jake T. Austin -- who, according to multiple sources, tried to hit up the Candies gifting suite backstage when he was turned away by a worker who didn't recognize the "Fosters" actor.

Multiple witnesses tell us ... Jake pulled a full "Don't you know who I am?" ... screaming at the employee, "I'm a presenter. Who the f**k are you?!"

We're told Austin got so heated, he picked up an empty shoe box and fired it at the female staffer's chest.

Jake eventually stormed off ... only to return to the gifting suite an hour later with his mom by his side -- and despite having parental supervision, he continued to talk more smack to the suite worker.

It's just another Lohan-esque moment for the former Disney actor -- who was busted for DUI last October and then destroyed the same car in a 4-car pileup just a month later.

We reached out to Austin for comment -- so far, no word back.