Not everyone knows the despotic tween queen of Disney.

When Miley Cyrus and a pal sashayed into the hipster hamburger haven Pop Burger in Manhattan after she ordered, the counter manager asked for her name to run her credit card.

 "Are you serious?" Miley reportedly snapped, according to an eyewitness.

"You don't recognize me? I'm Miley Cyrus."

The befuddled hash slinger still had no clue, ran her card and after it was approved, shrugged and said, "That's nice for you. Here is your order.

"Have a good day."