Justin Bieber knows how to get those teenage hearts pumping!! Reveal the cover to his upcoming book, Just Getting Started. Taking to his Twitter account, JB tweeted a pic of the cover along with a caption about how excited he is for his fans to read it.

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Justin Tweeted, "So excited to reveal the cover for my new book #JustGettingStarted. Hope u like it, I can't wait 4u 2 read it."

The once little boy is just getting started -- on transforming his career from teen heartthrob to a more manly musician that is. Justin was recently featured on the cover of Rolling Stone magazine with the headline, "Hot, Ready and Legal," which is the beginning of the end of his 14-year-old stigma.

What do you think of the cover?

Photos courtesy of Fame/Flynet & Twitter