Miley Cyrus just turned Malibu into a full-blown "Hannah Montana" time capsule. The singer was photographed cruising along the Southern California coast Saturday with a camera crew in tow, rocking the iconic platinum blonde wig, oversized shades and a sleek all-black outfit ... fully channeling her Disney Channel alter ego. And the biggest throwback of all? The car. Miley was behind the wheel of a classic black Ford Mustang convertible ... the same style ride her character famously drove in the