Pop art emerged in the 1950s-60s as a reaction to abstract expressionism, using imagery from popular culture like advertisements, comics, and mass-produced objects. Artists like Andy Warhol, Richard Hamilton, Roy Lichtenstein, Claes Oldenburg, and David Hockney employed techniques like silkscreening to critique or celebrate mass media and consumer culture through icons of the everyday. Warhol in particular became famous for his repeated images of Campbell's soup cans and celebrities.