Pop Art emerged in the late 1950s in London and was led by artists like Peter Blake, Roy Lichtenstein, Jim Dine, and Andy Warhol. It used imagery from popular culture and everyday commercial products to comment on contemporary society and culture. Pop Art sought to portray elements of culture and advertise or televise them using techniques like photo-realism. By the early 1960s, it had spread to the United States and was popularized by artists who made work that was simple and easy for viewers to identify and understand.