Britney Spears is so furious with her mother for writing a book about her, the troubled pop star looks set to publish her own side of the story. Mum Lynne, 52, has signed a $1 million (GBP500,000) deal to write a book on parenting but the pop princess plans to publish her own tell-all memoir at the same time. Spears is reported to have told a pal, "She is trying to make a quick buck. She says she's not sure if she'll go through with it - but I can't really trust her."