Streisand hits back.
The 64-year-old diva accused Christopher Anderson of rehashing earlier biographies and enlisted the help of her former brother-in-law to refute accounts of her meanness.
In a web posting called Does The Truth Matter These Days?, she wrote: "Normally, I would not dignify vicious, mean-spirited mythology masquerading as biography.
"But it seems this rehash is getting a lot of attention.
"Who is the person described in this book? From what has been told to me, it's not anyone I know."