From a New York Times obit by Martha Schwendener headlined “Claes Oldenburg Dies at 93; Pop Artist Made the Everyday Monumental”:

Claes Oldenburg, the Swedish-born American Pop artist known for his monumental sculptures of everyday objects, died on Monday at his home and studio in the Soho section of Manhattan.

Mr. Oldenburg entered the New York art scene in earnest in the late 1950s, embracing the audience-participation “Happenings” then in vogue and expanding the boundaries of art with shows that incorporated things like street signs, wire-and-plaster clothing and even pieces of pie. His approach to everyday objects, performance and collaboration has continued to influence generations of artists.