A new PSA video supporting California's Prop 37, which would mandate labeling of genetically modified foods, or GMOs, features a raft of celebrities.
In the video, sponsored by Food & Water Watch, Bill Maher, Danny DeVito, Dave Matthews, Jillian Michaels, Kristen Bauer van Straten, Emily Deschanel, Kaitlin Olson, Glenn Howerton, John Cho and KaDee Strickland mock arguments against GMO labeling.
"Certain companies would lose a lot of money if you didn't buy their stuff," points out Maher.
The video is posted on the site of Right to Know, a group supporting the Prop 37, which will be on the ballot in California in the November election.
Food & Water Watch says it's now working to raise money to air the video on television.