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Yayoi Kusama (1929–2026) was a pioneering Japanese contemporary artist renowned for her immersive polka-dot installations and pumpkin motifs, working across sculpture, painting, performance, and poetry. Born in Matsumoto on 22 March 1929, her traumatic childhood and vivid hallucinations, which began at age 10, profoundly shaped her artistic vision and her lifelong theme of "self-obliteration." Moving to New York City in 1958, she became a leading figure in the avant-garde pop-art scene, organizing notorious happenings with naked participants painted in dots that influenced contemporaries like Andy Warhol and Claes Oldenburg. After being overlooked in the 1970s, she experienced a revival in the 1980s and was later hailed as the world's top-selling female artist and most successful living artist. Open about her mental health, she has lived in a psychiatric facility since the 1970s, crediting art as her only method to relieve her illness. Her official website reported that she died in a Tokyo hospital on 27 August 2026.