Rod Stewart is one of the world’s most popular singers. Once among the most esteemed hard-rock vocalists, from his days with the Jeff Beck Group to the Faces, Stewart has widened his repertoire to the point that there doesn’t seem to be anything he won’t put his voice on. He battled throat cancer, but he sounds as amazing as ever as he works his way easily through songs that have withstood the tests of time: “That Old Black Magic,” “I’ve Got You Under My Skin,” “What a Difference a Day Makes” and “Moon River.” The arrangements are pure popular candy, with lots of strings and vamping for Stewart to play with. In the end, it’s all about the voice and Stewart’s resilience. His hardcore fans may not be completely thrilled with the middle-of-the-road smoothness of “Sunny Side of the Street,” or “Ain’t Misbehavin’,” but for folks with an ear for romantic pleasantries and easy-listening thrills, Stewart understands what it takes to reach across generations.