Jamie Lynn Spears is being put to the test, on not just by her sister, Britney ... she's one of 16 celebrities tapped for a new reality show where contestants go through challenges straight out of special forces training.
The former 'Zoey 101' star is competing in a new show on FOX, "Special Forces: The Ultimate Test," in what figures to be quite the celebrity experiment.
Jamie Lynn and her 15 famous counterparts will try to survive demanding special forces training exercises out in the desert .