A genre of art from 1960-present in which the artist presents a "live" happening or performance, often combining sound, music, dance, and ritual. An early example is a happening staged by French artist Yves Klein. Klein covered nude bodies of models with his signature blue paint in a series of works called Anthropometries. The models slid, rolled, and were dragged across large canvases leaving mostly abstract imprints. Most performance works are temporary, with no lasting art objects to sell or to preserve for museum viewing, though performance works are often documented by photography, video, or film.