, the 19-year-old Alaska teen who fathered a son with Sarah Palin
's daughter Bristol Palin
, recently filmed a Get Crackin'
television commercial aimed at boosting sales within the pistachio industry.
Johnston's last fleeting brush with fame came when he attended the Teen Choice Awards with comedian Kathy Griffin
- photos here
In his new commercial ad, the Alaskan boy stud ambles in with a swagger