London, Jan 14 - Teenage singing sensation Taylor Swift is keeping detailed notes on her everyday activities to be able to write her autobiography.

The 20-year-old has already written a 350-page novel which remains unpublished, but she's got big plans for another book about her life as a singing superstar, reported contactmusic.com.

Swift is careful to make notes every day in case she forgets something important.

'Years from now it would be cool to write a book about all the crazy stuff and the insane things I've gotten to do. My life moves so fast, I have to write it all down, otherwise I can't remember where I was yesterday. I will write my autobiography for sure,' she sai.d