They once seemed so close, two talented golden-haired girls with the world at their feet.
Pictures abounded of the two hugging on red carpets, hamming it up as kids and shining brightly in an industry that adored them.
But all that glitters is seldom gold – and a new book by Jamie Lynn Spears has enraged her big sister, Britney, who has fought a long, bruising battle for her independence and was trying to piece her life back together.