Justin Bieber is "excited" about his second book deal.

The global pop sensation will be putting together an autobiographical record of his incredible career.

Titled Justin Bieber: Just Getting Started, the tome will give fans an exclusive insight into the teenager's pop star life.

"I'm so excited to be working on another book with HarperCollins," he told Us Weekly. "Being able to share my story with my fans through these books is an absolute privilege. I can't wait to show them more about my life on tour and in the studio in this next book."

Illustrated with new pictures and quotes, the book takes admirers backstage on tour with Justin and shows them how much hard graft goes into recording an album.

The literary project follows the 17-year-old's 2010 release First Step 2 Forever: My Story, which sold over 1 million copies.

HarperCollins bosses have said they are "excited to be publishing the next chapter of his sensational career."

Justin Bieber: Just Getting Started is out in September.