What are some interesting facts about David Hockney?

There are several interesting facts about David Hockney. For one, the British artist refused to write an essay for his final exam at the Royal College of Art and instead submitted a sketch of his diploma, prompting the school to change the rules in order to allow him to graduate. He also has synesthesia, which allows him to see colors when he listens to music. In 1990, he turned down the opportunity to be knighted by the Queen of England. Another fact is that Hockney has always been fascinated by the use of technology in art. He is credited with inventing the technique of joining Polaroid photos in a collage to form a panoramic picture, and he has recently been using the Brush app to paint on an iPad. On 1stDibs, find a selection of David Hockney art.