Marcel Duchamp the Broken Arm", followed soon after. His "Fountain", a urinal signed with the pseudonym "R. Mutt", shocked the art world in 1917. "Fountain" was selected in 2004 as "the most influential artwork of the 20th century" by 500 renowned artists and historians. In 1919, Duchamp made a parody of the "Mona Lisa" by adorning a cheap reproduction of the painting with a mustache and goatee. To this he added the inscription "L.H.O.O.Q.", a phonetic game which, when read out loud in French quickly sounds like ""Elle a chaud au cul"". This can be translated as "She has a hot ass,"
Marcel Duchamp regular discussion group with Cubist artists including Picabia, Robert Delaunay, Fernand Léger, Roger de La Fresnaye, Albert Gleizes, Jean Metzinger, Juan Gris, and Alexander Archipenko. Poets and writers also participated. The group came to be known as the Puteaux Group, or the Section d'Or. Uninterested in the Cubists' seriousness, or in their focus on visual matters, Duchamp did not join in discussions of Cubist theory, and gained a reputation of being shy. However, that same year he painted in a Cubist style, and added an impression of motion by using repetitive imagery. During this period Duchamp's fascination with transition, change,