There are a few possible reasons why Warhol chose Audrey Hepburn as a subject:
* She was a pop culture icon. Hepburn was a beloved actress and fashion icon in the 1950s and 1960s. Warhol was fascinated by celebrities and popular culture, and saw them as representations of American consumerism and identity.
* Her image was widely available. Hepburn's face was everywhere, from movie posters to magazine covers. Warhol was able to easily obtain images of her to use in his silkscreens.
* She represented beauty and grace. Hepburn's classic beauty and elegance were in stark contrast to the gritty and sometimes grotesque imagery that Warhol often depicted in his work. This juxtaposition may have been a way for Warhol to explore themes of beauty, fame, and the fleeting nature of celebrity.
While Warhol never personally met Hepburn, her image became one of his most famous and recognizable works, embodying his unique artistic style and his fascination with mass media and celebrity culture.