friend and associate publisher of Interview, Paige Powell, dropped a copy of the magazine and a bottle of Beautiful Eau de Parfum by Estée Lauder into the grave. A memorial service was held in Manhattan for Warhol at St. Patrick's Cathedral on April 1, 1987. Art works Paintings By the beginning of the 1960s, 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. Those drips emulated the style of successful abstract expressionists such as Willem de Kooning. From these beginnings, he developed his later style and subjects. Instead of working on a signature subject matter, as he started out to do, he worked more and more on a signature style, slowly eliminating the handmade from the artistic process. Warhol frequently used silk-screening; his later drawings were traced from slide projections. At the height of his fame as a painter, Warhol had several assistants who produced his silk-screen multiples, following his directions to make different versions and variations. Warhol's first pop art paintings were displayed in April 1961, serving as the backdrop for New York Department Store Bonwit Teller's window display. This was the same stage his Pop Art contemporaries Jasper Johns, James Rosenquist and Robert Rauschenberg had also once graced. It was the gallerist Muriel Latow who came up with the ideas for both the soup cans and Warhol's dollar paintings. On November 23, 1961, Warhol wrote Latow a check for $50 which, according to the 2009 Warhol biography, Pop, The Genius of Warhol, was payment for coming up with the idea of the soup cans as subject matter. For his first major exhibition, Warhol painted his famous cans of Campbell's soup, which he claimed to have had for lunch for most of his life. It was during the 1960s that Warhol began to make paintings of iconic American objects such as dollar bills, mushroom clouds, electric chairs, Campbell's soup cans, Coca-Cola bottles, celebrities such as Marilyn Monroe, Elvis Presley, and Elizabeth Taylor, as well as newspaper headlines or photographs of police dogs attacking African-American protesters during the Birmingham campaign in the civil