It takes only a taste of the bad-girl attitude of “We Can’t Stop” to realise that the Miley Cyrus of 2013 has vibrantly outgrown the button-cute Disney star of her youth. With its hard-partying ethos, take-no-prisoners attitude and diamond-cut production, Cyrus’ fourth album, Bangerz, is the work of a pop megastar who’s determined to play by her own rules. The singer enlists a top-flight roster of hip-hop and pop sophisticates, including Midas-touch producers like Pharrell Williams (“4x4” and “#GETITRIGHT”) and Dr. Luke. She also brings in a cadre of guest stars including Britney Spears, Future and French Montana. But no matter how many high-calibre assists are on Bangerz, it’s Cyrus herself who steals the show, particularly on traffic-stopping ballads like “Wrecking Ball”.