BURGER lovers of Melbourne have been turned away from a pop-up store just half an hour after it opened.

Cult American burger joint In-N-Out announced on Tuesday morning they were taking over Chapel St restaurant Lover between 11am-3pm, selling world-famous double-doubles and animal fries.

But those who didn't start queuing up before 11.15 were told: "Sorry, we're out, but here's a sticker."

The queue, which spanned more than two blocks from the Windsor restaurant, moved slowly, with staff letting two or three people in at a time.

Those lucky enough to get a burger said it was worth the wait and lived up to the hype, but those who didn't made the walk of shame back home.

California native Dan Bui lives in Surry Hills now and wanted to taste that familiar taste again. He was among the first to miss out on the 300 burgers on offer.