What is the most famous piece of Pop art?

Opinions vary as to what the most famous piece of Pop art is. Two major contenders for the title are Andy Warhol's 1961–62 series Campbell's Soup Cans and Roy Lichtenstein's 1963 diptych painting Whaam!. Other notable Pop art works include A Bigger Splash by David Hockney, Flag by Jasper Johns, Crying Girl by Roy Lichtenstein, Radiant Baby by Keith Haring, the Marilyn Triptych by Andy Warhol, and Spoonbridge and Cherry by Claes Oldenburg. On 1stDibs, find a wide range of Pop art.