Andy Warhol was an American artist born in 1928 who became famous for his pop art paintings in the 1960s. He began painting everyday consumer items like Campbell's soup cans, which helped launch the pop art movement. Warhol used a silkscreening technique to produce multiples of his images in different colors. He later painted portraits of famous celebrities like Marilyn Monroe and Elvis Presley which increased his popularity. Today, Andy Warhol's paintings sell for millions of dollars and have become iconic representations of pop culture.