Stop everything.

Gwyneth Paltrow is planning to live on $29 in food stamps for a week.

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In a tweet Thursday, the 42-year-old actress wrote, "This is what $29 gets you at the grocery store—what families on SNAP (i.e. food stamps) have to live on for a week."

She followed up with her announcement, saying, "We're walking in their shoes to see how far we get."

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It's all for the #FoodBankNYCChallenge led by 54-year old celebrity chef, Mario Batali, and aims to raise awareness on hunger and poverty in the United States by challenging people to commit to a food stamp budget.