It appears that the LA Times wrote the wrong 'Kristen' in their article.
Update: May 3, 1:40 p.m.: This article states that Kristen Stewart would be a spokeswoman for the FNV campaign. Actress Kristen Bell has been signed to be a spokeswoman.
The Partnership for a Healthier America, which worked with First Lady Michelle Obama's Let's Move initiative, has organized a campaign centered on produce called FNV (for fruits-n-vegetables) and has signed up spokespeople such as actress Kristen Stewart and the NFL's Cam Newton to participate in TV and social media efforts. The campaign started recently in Fresno and Hampton Roads, Va., with plans to expand, said Lawrence Soler, chief executive of the partnership.