Check out my article on the Buffy St Marie song, Bury My Heart At Wounded Knee.
In the sixties and seventies, there was a concerted effort by the United States government to suppress Rock'n'Roll music and replace it with Country and Western. (Country music being the soundtrack of colonialism and manifest destiny.)
Native American musicians in particular were targeted by this "good ol' boy" expansionism, as they represented the antithesis of the cowboy/invader ethos. Documents from LBJ's administration have revealed that huge shipments of Buffy St Marie's albums were hijacked and destroyed by the government, and that radio stations were ordered by the administration not to play her music on the airways.
But Buffy says she didn't mind missing out on the fame and fortune at the time. She just went back onto Indian country, and dwelling there, grew stronger.