As Louis Armstrong forever tethered jazz to New Orleans and Clifton Chenier fixed Lafayette as home to zydeco, Slim Harpo established Baton Rouge as a base for the blues. In the only complete biography of this internationally renowned blues singer and musician, Martin Hawkins traces Harpo's rural upbringing near Louisiana's capital, his professional development fostered by the local music scene, and his national success with R&B hits like Rainin'...