Maybe it was the biz markie sample on "Anybody Seen My Baby?" that suggested the Rolling Stones were up for invigoration on Bridges to Babylon. Not that their rockers ("Flip the Switch") or ballads of taunting regret ("Already Over Me") are missing. It's that everything sounds vivified — from the reggae swagger of Keith Richards' "You Don't Have to Mean It" to Mick Jagger's hedonist manifesto "Saint of Me." A bridge to the twenty-first century? For the Stones, Babylon will do just fine.