I'm watching Espearanza Spalding's 2013 Austin City Limits show right now.

Anyone who claims she is not jazz does not know what they are talking about. From her superbly confident scat singing to her brilliant bass playing (simultaneous!), not to mention the excellent rhythm section, horn section, and backup singers, this is a knowledgeable, mature jazz artist with a Brazilian influence. And listenable, too! (unlike some hard bop commented on above) A major talent who is keeping jazz alive and well.