Hélio Oiticica (; July 26, 1937 – March 22, 1980) was a Brazilianvisual artist, sculptor, painter, performance artist, and theorist, best known for his participation in the Neo-Concrete Movement, for his innovative use of color, and for what he later termed "environmental art", which included ''Parangolés'' and ''Penetrables,'' like the famous ''Tropicália.'' Oiticica was also a filmmaker and writer.
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