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Andy Warhol was a famous 'Pop' artist, best renowned for his paintings of Campbell's soup cans and Marilyn Monroe.

Marge mentioned Warhol when Homer saw one of his paintings of Campbell's Soup Cans. Later, Homer had a dream where Warhol was throwing the soup cans at him. He then was about to throw a larger can of Split pea soup at Homer before he woke up.

One of Andy Warhol's Campbell's Soup Can in The Simpsons.

The real Andy Warhol.