Nigerian vocalist Sade Adu has carved out a cosmpolitan niche for herself over the past decade, gathering together elements of cool jazz, samba, reggae, funk and pop all under the pastoral umbrella of her suede-and-velvet voice. A pop stylist with a musical universe all her own, Sade has endured and matured over the past decade, seemingly unaffected by changes in taste and fashion–a movement unto herself…