Pop Art was an art movement that began in the late 1950s and used imagery from popular culture and everyday life. Pop artists blurred the lines between fine art and commercial art by using images and styles from advertisements, consumer goods, celebrities and other mass media sources. Andy Warhol was one of the most famous Pop Artists, known for works like Campbell's Soup Cans that used repetition and appropriated popular images. Pop Art challenged definitions of art by treating popular objects as art and reflecting the culture of 1960s America through use of new materials, technologies and methods of production.