My guest today is one of the original supermodels, she is a style icon of the Swinging Sixties, and David Bailey’s muse. Her autobiographical novel Piece Of My Heart, looks with brutal honesty at the dizzying impact of sudden fame and shares the inside scoop on ‘60’s fashion and high society. When John Lennon was asked to encapsulate her in three words, he replied, "Hot, Hot, Hot, Smart, Smart, Smart!”. I’m talking today with Penelope Tree…