Kelly Osbourne is revisiting her book Fierce — which also contained self-help advice for teenagers based on Osbourne’s own life experiences — to include all the exciting things that have happened to her since it was published last September, reports.

“Last week I started a rewrite of my autobiography Fierce, which was released last year,” she said.

“The publishers and I have decided it could do with updating after everything that’s gone on during the past six months, like taking part in Dancing with the Stars, and the cover photo needs changing too — I had black hair then.”

Osbourne — who has been in rehab four times to be treated for addiction to painkillers — admits she is more proud of the book than any of her other career achievements.

In the first version of Fierce, Kelly spoke candidly about how she wase addicted to Vicodin by the time she was 17.