Hedley’s THE SHOW MUST GO ranges from the electro-tinged opener “Cha-Ching,” about reality television’s intoxicating allure, and the rap-inflected “Don’t Talk to Strangers,” a jaundiced look at cougar women on the prowl, to such unabashedly sweet love songs as the piano ballad “Amazing” and the reggae feel-good number “Shelter.” Characteristically Hedley, there’s also such odes to hedonism as the hilarious “Young and Stupid” and the riotous “Nine Shades of Red,” which describes one of Hedley’s typically boisterous nights on the town. They may not be rocket surgeons, saving lives or saving the world, but Hedley is clearly making a contribution to the music scene. From the fizzy pop-punk of its debut to the sophisticated pop-rock of THE SHOW MUST GO, Hedley continues to prove that mixing frivolity with thoughtfulness and showmanship with songcraft is the best formula for success.