This Hungarian French singer/songwriter became one of France's leading pop stars, thanks to a swinging and sentimental blend of French stylings, energetic American R&B (especially that of Ray Charles) and Romani melancholy. In hit songs and on an ambitious concept album that also reflected his artistic process (La fabuleuse histoire de mister Swing), Jonasz nostalgically celebrated the sort of gypsy jazz pioneered by Django Reinhardt. His romantic hits convey an irresistibly persuasive sense of melodrama.