Kelly Osbourne has inked a deal to pen an advice book for teens.

The wildchild daughter of potty-mouthed rock legend Ozzy Osbourne and his wife Susan is writing Fierce as a guide to life for troubled adolescents.

Kelly knows a thing about tough childhood. The high school dropout fought drug addiction through her teenage years,

The now 24-year-old checked into a drug treatment center in Pasadena, California 2004 for addiction to painkillers. In 2005, she under treatment following a relapse. And just last January, Kelly entered yet another drug treatment facility after suffering a setback in her recovery.

Yet, the rock n’ roll daughter feels her troubled past gives a unique prospective on the problems facing teens.

She tells WWD.com: “It’s about all the major things girls go through before they turn 21… It’s 16 chapters where I explain what I did and where I went wrong, and then I offer professional advice on how to do things differently.”

Fierce by Kelly Osbourne is scheduled to arrive on booksellers’ shelves next year.