In American Indian storytelling circles the Anishenaabe (also called Chippewa and Ojibwa) use Windigo in a number of ways, sometimes metaphorical, sometimes literal. This sort of creature/character is not as widespread as Tricksters figures (who are found in literature around the world), but is an important figure in American Indian literature nonetheless. Modern writers who make particularly skillful use of Windigo are Louise Erdrich and Gerald Vizenor. Sorry I can't help with the song.