With his hulking frame and tattoos, Aaron Neville always looked more like a biker than a balladeer. When he sings, something gentle, warm, and almost otherworldly cascades out. Whether you find him serving up a percolating New Orleans party groove with the Neville Brothers or striking out on his own and reinventing everything from the Philly soul of “Everybody Plays the Fool” to the classic country weeper “The Grand Tour,” Aaron Neville doesn't simply sing a song—he inhabits it.