'It's disrespectful': Bobbi Kristina blasts grandmother's tell-all book on dead mother Whitney Houston.

Whitney Houston's daughter blasted her grandmother's tell-all book claiming it's 'disrespectful' to her mother's memory and urged fans not to buy it. 

The late singer's only daughter Bobbi Kristina, 19, revealed in a scathing attack on Twitter that she and her boyfriend Nick Gordon, who was also raised by the star, don't support her grandmother Cissy Houston's book 'Remembering Whitney'. 

Writing on her Twitter page, Bobbi said: 'Anything concerning my grandmother's book, I and @nickgordon of course personally have nothing to with.

'Disrespectful': Bobbi Kristina has urged fans to boycott her grandmother's tell-all book (pictured with mother Whitney in February 2012)

'I haven't read and won't ... I find it to be disrespectful to my mother and me being her daughter won't tolerate it.'

Whitney's mother, 79, claims her life was 'shattered' after the superstar was found dead in the bathtub of her hotel room last February.

In an extract from the book, she said: 'That was the moment my life shattered. I don't know what I did or said after that. I was told later that I screamed so loudly that the while building must have heard me, but my mind was absolute blank, except for one thought - that my baby had gone.

Attack: Bobbi Kristina took to Twitter to vent her feelings on her grandmother's book 

Remembering Whitney: Cissy has spoken of the moment she found out her superstar daughter died in the new book - but daughter Bobbi Kristina has blasted the memoir

'Even now, nearly a year later, I sometimes just ache, wishing I could hug my Nippy one last time. I never ever thought she would go before me. The first days after the news blurred into a terrible haze. I would fall into a fitful sleep and wake up and realise an hour or two later that my greatest nightmare was real.'

Cissy appeared on 'Oprah's Next Chapter' earlier this week to promote the book and admitted her relationship with Bobbi is strained at the moment because she didn't want her to write the book.