Already hugely successful, as their European arena tour confirms, the American quartet have breathed new life into the notion of bombastic, radio-friendly but uncompromising hard rock anthems. Fortress, the band's fourth album, suggests that their upward sprint is set to continue. The combination of guitarist Mark Tremonti's unashamedly metallic riffing and singer Myles Kennedy's (otherwise known as Slash's right-hand man) versatile and soulful voice ensures that every one of these 12 songs bristles with conviction.g