well, it's great that there are so many Native artists these days.. there's an Aboriginal Music Awards gala in Canada every year, also the Aboriginal Achievement Awards founded by John Kim Bell which is a broad platform for recognizing the contributions made by individuals to their various cultures... 40 odd years back, not much long after the Native people were given the right to vote.. there were only a few singers in North America who addressed the issues... Buffy Ste-Marie, Floyd Red Crow Westerman, Peter LaFarge, Shingoose, and Willie Dunn come to mind.
They really blazed a wide trail for the many who followed...