johnston111809_01_X17230WM.jpgLevi Johnston is currently working on a tell-all book called "Deer in the Headlights: My Life in Sarah Palin's Crosshairs," according to Us.

Johnston, 20, will be releasing the book this fall. A source tells the mag:

    "He's ready to give an inside glimpse to his relationship with the Palins, share his trials and tribulations of being thrust into the spotlight and becoming a father at such a young age."

On May 6, the father of Bristol Palin's baby will reportedly be celebrating his 21st birthday at Chateau Nightclub & Gardens in Sin City.