“Slug Line” was singer-songwriter John Hiatt’s third album, released in 1979. Adding reggae and rhythm ’n’ blues to the stew, Hiatt delivered a rawer and meaner album, establishing him as an original and creative singer-songwriter. Confidently flirting with reggae on “Madonna Road’,* pop on “Radio Girl’,* rockabilly on “You Used To Kiss The Girls” and r&b on “Washable Ink’,*