Pop star Kelly Osbourne is planning to write her autobiography, after being inspired by the success of her mother Sharon's book 'Extreme.' The newly svelte 21-year-old is keen to chronicle her colourful life - which includes stints in rehab and a series of stormy romances. She says, "I am definitely going to write an autobiography, so watch out for it. There is no way I would ever do 'Celebrity X Factor', even though my mother is involved. And I would never even dream of releasing a fitness video with my brother Jack, even though we have both lost loads of weight recently." (wenn)