Hammett-Vaughan, Kate: Includes a biography, discography, and tour dates for this Canadian vocalist.Harris, Allan: Reviews, performance schedule, new recording information and music downloads for this vocalist who keeps the Johnny Hartman tradition alive.Hatch, Monica: Recognized in diverse musical circles for her ability to sing in a variety of styles; from Baroque to Be-bop to Bossa Nova; her site has biographical information and reviews.Heinrich, Katharina: German-born singer/songwriter living in the UK, influenced by Rickie Lee Jones and Joni Mitchell. Biography, reviews, audio samples and CD sales.Hindmarsh, Lisa: Website of Pittsburgh jazz singer includes clips from her cd "Now I Know", reviews, and online orders.Hodge, Cheryl: The official site of jazz vocalist Hodges offers free vocalist training manual online, samples of her music. portfolio, tour schedule, and cds for sale.Horn, Shirley: Biography of ballad singer and a pianist Horn who was encouraged in the early '60s by Miles Davis and Quincy Jones.Humes, Helen: Brief biographical sketch of Humes who recorded with Harry James in 1937-38 and then joined Count Basie's Orchestra for three years.