Miley Cyrus is famous, but there are still some people out there who’ve never heard of “Hannah Montana.” When Cyrus and a friend came into the Pop Burger on East 58th Street and ordered, the counter manager asked for her name to mark the order. She snapped back, “Are you serious? You don’t recognize me? I’m Miley Cyrus.” The counterman still had no clue who she was, ran her credit card with her name on it and shrugged, “That’s nice for you. Here is your order. Have a good day.”