In the 1990s and 2000s, the 1940s slang term hipster began being used in North America to describe young, well-educated urban middle class and upper class adults with leftist, liberal, orlibertarian social and political views and interests in a non-mainstream fashion and cultural aesthetic. While definitions vary, hipsters are often associated with alternative music, "indie" culture (indie rock and independent film), and other non-mainstream products, such as vintage clothing.