Then there's Shirley Jones, her new autobiography (written with Wendy Leigh and published by Simon & Schuster's Gallery Books imprint) that turns the 79-year-old actress' image on its head in startling - even shocking - ways.
"So bring out the smelling salts, hang on to your hats, and get ready for the surprise of your lives!" she writes, coyly, in the book's introduction. It's not false advertising.
There's a recounting of her early life and dazzling career that included working with musical-theater masters Richard Rodgers and Oscar Hammerstein, as well as many of Hollywood's top actors, including Marlon Brando (king of the retakes to exhaustion), Jimmy Stewart (charmingly ditsy) and Richard Widmark (the only costar she fell in love with).
But a substantial part of the book is spent on her troubled marriage to the late Jack Cassidy, the glossily handsome actor and singer whom she describes in a passage as her first lover and "sexual Svengali," and whose lessons she shares candidly.
That includes - X-rated spoiler alert - Cassidy's impressive endowment, Jones' own "highly sexed" nature that made orgasms a breeze, their threesome with another woman ("yuck," she says), Cassidy's premarital sexual encounter with Cole Porter that Jones says left her unfazed, and her tolerance for his infidelities.
The character of Marian, the spinsterish librarian in 1962's The Music Man, another smash hit for Jones, "wasn't me," she said firmly.
"I never would have written this book if I weren't the age I am now," she says.
Jones overturned her squeaky-clean image once before with her Oscar-winning portrayal of a vengeful prostitute in Elmer Gantry (1960) opposite Burt Lancaster, the role that she considers her most important.
Marty Ingels, the comedian who is her second husband of 35 years, jokes that he is offended by her personal history.
"All that stuff she did with her husband [Cassidy], all those adventures . . . . I'm looking into the grounds of having my marriage annulled," he said.
Of the many photos scattered around her house, all but one - a group shot showing the triumphant Jones and Lancaster on Oscar night - are of children and grandchildren.
Jones had a chance to reflect on her life anew while recording the audio version of Shirley Jones.
"What came to me is, 'I did this, and obviously I loved it when I was doing it," she said. "I had a great time. I have no regrets whatsoever."