Kubota, Shigeko (久保田成子) is visual and performance artist born in Niigata, Japan, in 1937. She studied sculpture at the Tokyo University of Education and completed her studies at New York University and at the New School for Social Research in the early 1960s. She became vice chairman of the Fluxus Organization in 1964 and was married to another member of that art movement, Nam June Paik. A well known and important early work is her Vagina Painting performance of 1965 in which she painted on a horizontal surface using a brush attached to her underwear. The work is often cited as a female rejoinder to Jackson Pollock's action or drip paintings.