Denis O’Regan talks to PEOPLE about his book, "David Bowie," and his experiences traveling with the star on different tours ...

Princess Diana and David Bowie at the Concert of Hope benefit for World AIDS Day at Wembley Arena in London on December 2, 1993. | Credit: Tim Graham Photo Library via Getty Images ...

Palace Blocked Photos of Princess Diana at David Bowie Concert to Conceal Her Affair with James Hewitt, Photographer Says "They just didn’t want Diana in the press. It was really they didn’t ...

Music photographer Denis O'Regan has claimed that Kensington Palace held back his picture of Princess Diana with David Bowie after a 1987 London concert because she went to the show with James Hewitt ...