Andrew Warhola (August 6, 1928 – February 22, 1987), known as Andy Warhol, was an American painter, printmaker, and filmmaker who was a leading figure in the visual art movement known as Pop Art. After a successful career as a commercial illustrator, Warhol became famous worldwide for his work as a painter, avant-garde filmmaker, record producer, author, and member of highly diverse social circles that included bohemian street people, distinguished intellectuals, Hollywood celebrities and wealthy patrons. By the beginning of the 1960s, Warhol had become a very successful commercial illustrator, his profile as an illustrator seemed to undermine his efforts to be taken seriously as an artist. Pop art was an experimental form that several artists were independently adopting; some of these pioneers, such as Roy Lichtenstein, would later become synonymous with the movement. Warhol, who would become famous as the "Pope of Pop", turned to this new style, where popular subjects could be part of the artist's palette. His early paintings show images taken from cartoons and advertisements, hand-painted with paint drips. Warhol's first pop art paintings were displayed in April 1961, serving as the backdrop for New York Department Store Bronwit Teller's window display. Eventually, Warhol pared his image vocabulary down to the icon itself – to brand names, celebrities, dollar signs – and removed all traces of the artist's "hand" in the production of his paintings.