July 9 is the birthday of British painter and multimedia artists David Hockney. He’s 75. Active in the Pop art movement of the 1960s, he lived in California during that period and made a series of paintings of swimming pools in Los Angeles, using the relatively new medium of acrylic paints, which he employed in a realistic style with bright colors. “A Bigger Splash” (pictured) from 1967 is one of his most well-known paintings. Hockney has the condition synesthesia, in which he sees colors in response to musical stimuli. This has influenced his design of stage sets for various ballets and operas.