In the late 1950s, the most important late twentieth century artistic movement appeared out of popular culture - unsurprisingly, it was named Pop Art. It seems to have arisen simultaneously on both sides of the Atlantic in England and the United States. Like earlier movements, it was in many ways anti-art, except it wanted to present art in terms of popular culture and, therefore, to be accessible to all. Artists assembled works out of everyday objects, especially ephemera, to produce vividly colourful projects. The major British artists are David Hockney, Richard Hamilton, Peter Blake, and Eduardo Paolozzi. In America, principally in New York, artists such as Andy Warhol, Jasper Johns, Robert Rauschenberg, and Roy Lichtenstein were working to great acclaim.