Who is this man? A blues singer? A jazz singer? John Laine? If there’s one thing people who know Roger will agree on, it is that he is a chameleon. He can move seamlessly between styles and genres, between blues, jazz, ballads, and swing; between musical eras, like the show tunes of the 30s and 40s, through the lush ballads of the 50s and early 60s, to the revived rhythm and blues of the 60s, and the fusions of the 70s.