Meet the art world’s hottest young artist: “Within a week of her most recent exhibition, she had been filmed by more than 10 TV crews, received calls from David Letterman, Ellen DeGeneres and Oprah, and been labelled a ‘world-famous Abstract Expressionist’. But the artist herself is said to be oblivious to it all. She is, according to those closest to her, ‘kind of reclusive’, ‘very sensitive’, ‘temperamental’ at times, and extremely loath to talk about her work.” And she is… four years old!