The book which is due to be released next month will feature The TiK ToK hitmaker's "thoughts and reflections" as well as her childhood photographs which has never been seen before.
"In less than three years I've gone from being the worst waitress in L.A. to living out my childhood dreams of singing my songs to people all over the world. Sometimes, it feels as if the last few years have encompassed a few decades," Contactmusic quoted the songstress as telling in a statement.
"You might have heard my voice on the radio, seen me onstage and on the red carpet, or in a music video, but that's only a part of the story. In these pages, I'm revealing a more complete picture of what my life is really like. It's not all glamorous and it's not all pretty, but it's all real